Chemistry The Halogens and Noble Gases Online Mcqs Test

Q: How can I prepare for Chemistry The Halogens and Noble Gases Online Mcqs Test?

You can prepare for Chemistry The Halogens and Noble Gases Online Mcqs Test by attempting the free online quizzes at Gotest.com.pk. We provide instant results, performance reports, and detailed explanations for every question.

Question 1

1. The type of hybridization of born in diborane is

Answer

Sp²-hybridisation

Answer

Sp³d²-hybridisation

Answer

Sp-hybridisation

Answer

Sp³- hybridization

Question 2

2. The lowest boiling point of helium is due to its

Answer

Gaseous nature

Answer

High polarisability

Answer

Weak van der Waals forces between atoms

Question 3

3. What is more true about alkali metals?

Answer

Reducing agents

Answer

Oxidizing agents

Answer

Hydrolyzing agents

Answer

Both oxidizing and reducing agents

Question 4

4. The elements with atomic numbers 9, 17, 35, 53, 85 and all

Answer

Heavy metals

Answer

Noble gases

Answer

Light metals

Question 5

5. Who reported first noble gas?

Answer

J.J Thomson

Answer

Frank land

Question 6

6. The name of CaSO₄. ½ H₂O is

Answer

Plaster of Paris

Answer

Epsom salt

Question 7

7. Common oxidation state of boron are

Question 8

8. Which is the strongest acid?

Question 9

9. In which of the following groups, when he is placed, its all properties are satisfied?

Answer

With alkali metals

Answer

With halogens

Answer

None of these

Answer

With inert gases

Question 10

10. The shape of gaseous SnCl₂ is

Answer

Tetrahedral

Question 11

11. Chlorine acts as a bleaching agent only in the presence of

Answer

None of these

Question 12

12. The number of electrons that are paired in oxygen molecule are

Question 13

13. Fluorides of Ca, Mg, Ba and Sr are

Answer

Less soluble in water

Answer

Variable trend

Answer

Highly soluble in water

Answer

Insoluble in water

Question 14

14. Pyrex glass is a mixture of

Answer

Sodium silicate and aluminum borosilicate

Answer

Sodium silicate and lead silicate

Answer

Sodium borosilicate and aluminum borosilicate

Answer

Sodium silicate and calcium silicate

Question 15

15. The bleaching action of chlorine is due to

Answer

Chlorination

Answer

Hydrogenation

Question 16

16. The difference of water molecules in gypsum and plaster of Paris is

Question 17

17. Which of the noble gas has highest polarizabilities?

Question 18

18. B, Al, Ga, In and Tl belong IV group of the period table show a decrease with increasing relative atomic mass:

Answer

The stability of +2 oxidation state

Answer

The first ionization energy

Answer

The basic character of the oxides

Answer

Ionic character of the compound

Question 19

19. Which of the following is true for magnesium?

Answer

It is a strong reducing agent

Answer

It resembles, in chemical properties, with its diagonally placed element Boron in III group of the Periodic Table

Answer

It is manufactured by electrolysis of aqueous magnesium chloride

Answer

It is more electropositive than sodium

Question 20

20. The most acidic of the following compounds is

Question 21

21. The correct sequence of elements in the decreasing order of first ionization energy is

Answer

Mg > Na > Al > Si

Answer

Si > Mg > Al > Na

Answer

Na > Mg > Al > Si

Answer

Al > Mg > Na > Si

Question 22

22. Which statement is correct?

Answer

None of these

Answer

Noble gases have low m.p and b.p.

Answer

Noble gases will all burn in pure oxygen

Answer

Noble gases are all dense gases

Question 23

23. Aluminum (III) chloride forms a dimer because

Answer

Al has high ionization energy

Answer

Higher co-ordination can be achieved by Al

Answer

It cannot form a trimer

Answer

Al belongs to third group

Question 24

24. NaOH is prepared by the method

Answer

Castner cell

Answer

Castner Kellner cell

Answer

Down’s cell

Answer

Solvay process

Question 25

25. Mg is an important component of which biomolecule occurring extensively in living world?

Answer

Haemoglobin

Answer

Chlorophyll

Question 26

26. Orthophosphoric acid is

Answer

Tetrabasic

Question 27

27. Which of the following is most electronegative?

Question 28

28. Which of the halogen can displace other three elements?

Question 29

29. Which of the following phosphorus is most reactive?

Answer

Scarlet phosphorus

Answer

Red phosphorus

Answer

White phosphorus

Answer

Violet phosphorus

Question 30

30. In certain respects, lithium differs from other alkali metals. The main reason for this is

Answer

Greater hardness of Li

Answer

Small size of lithium atom and Li⁺ ion

Answer

Extremely high electropositivity of Li

Answer

Hydration of Li⁺ ion

Question 31

31. An aqueous solution of sodium carbonate is alkaline because sodium carbonate is a salt of

Answer

Weak acid and weak base

Answer

Weak acid and strong base

Answer

Strong acid and strong base

Answer

Strong acid and weak base

Question 32

32. Which is true for an element R present in group 13 of the periodic table?

Answer

It forms R₂O₃

Answer

It has oxidation state of +4

Answer

It is a gas at room temperature

Answer

It forms RX₂

Question 33

33. Several blocks of magnesium are fixed to the bottom of a ship to

Answer

To prevent the action of water and salt

Answer

Mark the ship lighter

Answer

Prevent puncturing by under sea rock

Answer

Keep away the sharks

Question 34

34. The spectrum of helium is expected to be similar to that of

Question 35

35. The variety of glass used in making lenses and prisms of

Answer

Crooke’s glass

Answer

Flint glass

Answer

Borosilicate glass

Answer

Soda glass

Question 36

36. The element which has a simple cubic lattice in solid state is

Answer

None of these

Question 37

37. Electropositive character increase down the group due to

Answer

Decrease in I.P

Answer

Decrease in electronegativity of the elements

Answer

All of these

Answer

Increase in atomic size of elements

Question 38

38. Select the weakest acid among the following

Question 39

39. Which one of the following elements belongs to halogen family?

Question 40

40. The correct formula of Plaster of Paris is

Answer

CaSO₄.2H₂O

Answer

CaSO₄. 1/2H₂O

Answer

CaSO₄. 3H₂O

Question 41

41. Which of the following is an electron management of a noble gas?

Question 42

42. Which of the following belongs to the halogen family?

Question 43

43. Which statement is true about IV A group

Answer

There is a regular gradation of properties from top to bottom

Answer

Whole group consist of non-metals

Answer

Abrupt change of properties

Answer

Marked change of properties

Question 44

44. Which of the following species has the highest ionization potential?

Question 45

45. Which of the following statements is incorrect about halogens?

Answer

They have high electron affinity and ionization energy

Answer

All the halogens have electronic configuration ns2P5

Answer

All the halogens react with noble gases to form their halides

Answer

All are non-metals

Question 46

46. Which halogen acid is a liquid no room temperature?

Question 47

47. P₂O₅ is heated with water to give

Answer

Orthophosphoric acid

Answer

Hypo phosphorous acid

Answer

Hypo phosphoric acid

Answer

Phosphorous acid

Question 48

48. Aluminum is most abundant in earth’s crust, yet it is obtained from bauxite because

Answer

Bauxite contains maximum of Al

Answer

Bauxite is less impure

Answer

Of easy extraction of Al from it

Answer

Bauxite is available in large quantity

Question 49

49. Bleaching powder loses its power on keeping for a long time because

Answer

It absorbs moisture

Answer

It changes into calcium chloride and calcium chlorate

Answer

It changes into CaCl₂ and Ca(OH)₂

Answer

It change into calcium hypochlorate

Question 50

50. The correct order of electron affinity of B, C, N, O is

Answer

O > C > N > B

Answer

O > B > C > N

Answer

B > N > C > O

Answer

O > C > B > N

Question 51

51. Mark the smallest atom

Question 52

52. Which of the following is acidic?

Question 53

53. The most stable +2 oxidation state is exhibited by

Question 54

54. Mark the compound which does not exist

Question 55

55. O²¯ has high ionic radius because the ionic radius of anion is greater than individual element. Which of the following oxides is amophteric in character?

Question 56

56. In the periodic table, the element with atomic number 16 will be placed in the group

Question 57

57. The percentage of lead in lead pencil is

Question 58

58. Hypo is used in photography for

Answer

The colour of picture

Answer

The fixation of picture

Answer

Picture printed

Answer

Developing picture

Question 59

59. When one mole of bleaching powder is completely decomposed, then the mass of chlorine gas that is liberated will be

Question 60

60. The halogen having highest electron affinity is

Question 61

61. The number of elements in the 4th period of periodic table is

Question 62

62. In the electrolytic extraction of aluminum fused cryolite is added

Answer

To act as reducing agent

Answer

To make a conducting solution of bauxite

Answer

To increase Al production

Answer

To protect the anodes

Question 63

63. Among the halogens the rare element is

Question 64

64. Molten sodium chloride conducts electricity due to the presence of

Answer

Free electrons

Answer

Atoms of sodium and chlorine

Answer

Free molecules

Answer 129

Carbon dioxide

Answer 130

Sulphur dioxide

Answer 131

None of these

Answer 132

Has the largest size

Answer 133

Has the lowest ionization enthalpy

Answer 134

In the most readily available gas

Answer 135

Has the highest heat of vaporization

Answer 136

Phosphorus

Answer 137

Sodium is the not most abundant metal in earth’s crust

Answer 138

Melting and boiling points of alkali metals decrease down the group

Answer 139

Sodium is the most abundant metallic element in sea water

Answer 140

Ionic character of alkali metal halides decreases down the group

Answer 141

Elemental Na is a strong oxidizing agent

Answer 142

Elemental Na is insoluble in NH₃

Answer 143

Element sodium can be prepared and isolated by electrolyzed an aqueous solution of NaCl.

Answer 144

Elemental Na is easily oxidized

Answer 145

Ca₃(PO₄)₂

Answer 146

Transition elements

Answer 147

Alkali metals

Answer 148

Its molecule has a large size

Answer 149

It possess hydrogen bonding

Answer 150

It is highly electronegative

Answer 151

It has metallic bond

Answer 152

Heat of dissociation

Answer 153

Heat of hydration

Answer 154

Electron affinity

Answer 155

Ionization potential

Answer 156

Helium is much less soluble in blood than nitrogen

Answer 157

Nitrogen is much less soluble in blood than helium

Answer 158

Nitrogen is highly soluble in water

Answer 159

Under the sea nitrogen and oxygen react to give poisonous nitric oxide

Answer 160

Ordinary (soda lime) glass

Answer 161

Solvay process of sodium carbonate

Answer 162

Phosphorus from phosphorite

Answer 163

Iron from haematite

Answer 164

Radioactive

Answer 165

Metalloids

Answer 166

Polymorphic

Answer 167

Non-metals

Answer 168

In metallurgical process

Answer 169

As a drying agent

Answer 170

As a plaster for walls

Answer 171

In dentistry and surgery

Answer 172

Chalcopyrites

Answer 173

Electron affinity

Answer 174

Energy dissociation

Answer 175

Hydration energy of ion

Answer 176

High atomic number

Answer 177

Preventing overdeveloping and fogging

Answer 178

Dissolving out unreacted silver bromide

Answer 179

Converting silver halides to metallic silver

Answer 180

Reducing solubility of AgBr

Answer 181

All of these

Answer 182

Polyatomic

Answer 183

Monoatomic

Answer 184

III group radicals are precipitated as hydroxides

Answer 185

Of the oxidation of H₂S gas by some acid radicals

Answer 186

Sulphur is present in the mixture as impurity

Answer 187

IV group radicals are precipitated as sulphides

Answer 188

Converting sand into silici acid

Answer 189

Hydrating sand and gravel mixed with cement

Answer 190

Keeping it cool

Answer 191

Developing interlocking needle like crystals of hydrated silicates

Answer 192

Ca(CN)₂ + C

Answer 193

CaC₂ + C

Answer 194

CaCN₂ + C

Answer 195

Sodium atoms

Answer 196

Sodium amide

Answer 197

Solvated electrons

Answer 198

Sodium hydride

Answer 199

Alkali metals have ns’ configuring in outermost shells

Answer 200

Alkali metals do not reacts with metals

Answer 201

Alkali metal atom has the smallest size in its period

Answer 202

Na cl on electrolyzing give sodium the anode and cl at cathode

Answer 203

Ne is obtained during radioactive disintegration

Answer 204

HE is used in producing very low temperatures

Answer 205

Ar is used in electric bulbs

Answer 206

Half-life of Rn is only 3-8 days

Answer 207

Lose 2 electrons

Answer 208

Lose 3 electrons

Answer 209

Gain 3 electrons

Answer 210

Gain 2 electrons

Answer 211

Large size

Answer 212

High ionization potential

Answer 213

Low electron affinity

Answer 214

Low ionization potential

Answer 215

They are far above the hydrogen in electrochemical series based on oxidation potential

Answer 216

Their ionization potential is less than that of other elements

Answer 217

They contain only one electron in their outermost shell

Answer 218

They are far below the hydrogen in electrochemical series based on oxidation potential

Answer 219

A sulphate

Answer 220

A carbonate

Answer 221

Sodium azide

Answer 222

Sodium nitride

Answer 223

Sodium hydride

Answer 224

Sodium amide

Answer 225

Ozone is more reactive than dioxygen

Answer 226

Ozone protects the earth’s inhabitants by absorbing gamma-radiations

Answer 227

Ozone is formed in the upper atmosphere by a photochemical reaction involving dioxygen

Answer 228

Ozone is diamagnetic whereas dioxygen is paramagnetic

Answer 229

Hydrogen chloride over phosphorus pentoxide

Answer 230

Chlorine gas over hot HgO

Answer 231

Perchloric acid (CHIO₄) over hot silver oxide

Answer 232

Chlorine and oxygen over hot silver chlorate

Answer 233

Calcium carbonate

Answer 234

Sodium carbonate

Answer 235

Sodium bicarbonate

Answer 236

Calcium oxide

Answer 237

Small size

Answer 238

High dissociation energy

Answer 239

Low first ionization energy

Answer 240

nS₂, nP₆

Answer 241

NS₂, nP₄

Answer 242

nS₂, nP₃

Answer 243

ns₂, nP₅

Answer 244

Less than O but more than SE

Answer 245

More than O and Se

Answer 246

More than O but less than Se

Answer 247

Equal to O and Se

Answer 248

It is used in the formation white cement

Answer 249

It is used as fire proof in textile

Answer 250

It is used furniture polish

Answer 251

It is as filter for soap

Answer 252

High ∆H lattice

Answer 253

High covalent nature

Answer 254

Small ionic size of Li⁺

Answer 255

Low ∆H lattice

Answer 256

Kl is soluble in benzene

Answer 257

CaO has high m.p.

Answer 258

Kl has high m.p.

Answer 259

Lattice energy of CaO is much higher than that of Kl

Answer 260

d-orbitals

Answer 261

s-orbitals

Answer 262

p-orbitals

Answer 263

Nuclear charge

Answer 264

Atomic number

Answer 265

Atomic size

Answer 266

Atomic size and nuclear charge both

Answer 267

It is highly hygroscopic

Answer 268

HCl is formed in moist air

Answer 269

It is very volatile

Answer 270

It is covalent

Answer 271

Roasting lime stone

Answer 272

Electrolysis of molten anhydrous or fused calcium chloride

Answer 273

Electrolysis of solution of calcium chloride in water

Answer 274

Reduction of calcium chloride with carbon

Answer 275

Prismatic sulphur

Answer 276

Rhombic sulphur

Answer 277

Plastic sulphur

Answer 278

Monoclinic sulphur

Answer 279

It oxidizes mercury

Answer 280

It cannot act as a bleaching agent

Answer 281

It oxidizes lead sulphides

Answer 282

It oxidizes potassium iodide

Answer 283

Tri-calcium silicate

Answer 284

Tetra calcium aluminoferrite

Answer 285

Diclacium silicate

Answer 286

Tri-calcium aluminate

Answer 287

Br is more reactive than Cl₂

Answer 288

None of these

Answer 289

Iodine is a solid

Answer 290

Cl₂ is more insoluble in water

Answer 291

Sodiums sulphates

Answer 292

Sodium persulphate

Answer 293

Sodium sulphides

Answer 294

Sodium thiosulphate

Answer 295

Fluoride ion

Answer 296

Sodium ion

Answer 297

Chloride ion

Answer 298

Nitride ion

Answer 299

Various forms

Answer 300

Monoatomic molecules

Answer 301

Diatomic molecules

Answer 302

Cannot be predicted

Answer 303

High lattice energy of M²⁺ ions in the solid state

Answer 304

High energies of hydration of M²⁺ in solution

Answer 305

None of these of M²⁺ ions

Answer 306

Diamagnetic nature

Answer 307

It reacts with chlorine gas

Answer 308

It reacts with fats to form soap

Answer 309

It corrodes the organic tissues

Answer 310

It is used in soda water

Answer 311

Ionization energy

Answer 312

Atomic radius

Answer 313

Boiling point

Answer 314

Acid decomposes water

Answer 315

It hydrolyses the acid

Answer 316

Acid forms hydrates with water

Answer 317

It decomposes the acid

Answer 318

Electrolytic methods

Answer 319

Double decomposition methods

Answer 320

Reduction methods

Answer 321

Displacement methods

Answer 322

Low melting point

Answer 323

High ionization energy

Answer 324

Their ions are isoelectronic with noble gases

Answer 325

Low electronegativity

Answer 326

F₂>Cl₂>Br₂>I2

Answer 327

I₂>F₂>Br₂>U₂

Answer 328

U₂>Br₂>I₂>F₂

Answer 329

I₂>Br₂>U₂>F₂

Answer 330

Electron deficiency

Answer 331

Acidic nature

Answer 332

Covalent nature

Answer 333

Ionization property

Answer 334

Rutherford

Answer 335

Frank land and Lockyer

Answer 336

Nitrogen trichloride

Answer 337

Hyponitrous acid

Answer 338

Phosphorus trichloride

Answer 339

Nitrosyl chloride

Answer 340

Removing impurities of calcium and magnesium form water

Answer 341

Dissolving heavy salt in water

Answer 342

Simple distillation of water

Answer 343

Prolonged electrolysis of water

Answer 344

Large atomic size

Answer 345

Small ionic size

Answer 346

Metallic properties

Answer 347

Strongly bond valence electrons

Answer 348

Iron oxide

Answer 349

Form salts which are predominantly covalent

Answer 350

Form salt like hydrides

Answer 351

Show decreased chemical reactivity with dry oxygen in going form Li to Cs

Answer 352

Show increasing electro negativity from Li to Cs.

Answer 353

Sulphuric acid

Answer 354

Carlo’s acid

Answer 355

Marshall’s acid

Answer 356

None of these

Answer 357

Triatomic molecules

Answer 358

Diatomic molecules

Answer 359

Atoms linked by weak bonds

Answer 360

Single free atoms

Answer 361

Orthophosphoric acid

Answer 362

Hypo phosphorous acid

Answer 363

Metaphosphoric acid

Answer 364

Pyro phosphoric acid

Answer 365

Some nitrogen molecules analogous to O₂

Answer 366

Greater amount of nitrogen molecules derived from N¹⁵ isotope

Answer 367

In the atmosphere

Answer 368

As salts in ponds

Answer 369

Iodine solution

Answer 370

High atomic number

Answer 371

Energy dissociation

Answer 372

Hydration energy

Answer 373

Electron affinity

Answer 374

Absorbs moisture and turn into liquid

Answer 375

Absorbs moisture and remain solid

Answer 376

Loses water of crystallization

Answer 377

Increases the water of crystallization

Answer 378

Zero electron affinity

Answer 379

Higher I-P

Answer 380

Large size

Answer 381

Strong reducing agents

Answer 382

Strong oxidizing agents

Answer 383

Weak oxidizing agents

Answer 384

Weak reducing agents

Answer 385

HF molecules form intermolecular H-bonds

Answer 386

Fluorine atom is smaller in size

Answer 387

HF is the weakest acid

Answer 388

Fluorine is highly reactive

Answer 389

Atomic radius

Answer 390

Ionization energy

Answer 391

Electro negativity

Answer 392

None of these

Answer 393

H₂B₄O₇

Answer 394

Inner transition elements

Answer 395

Transition elements

Answer 396

Representative elements

Answer 397

Linear, basic

Answer 398

Linear acidic

Answer 399

Angular, disc

Answer 400

Tetrahedral, acidic

Answer 401

It is more reactive than other halogens

Answer 402

It restricts to oxidation state – 1 only

Answer 403

It has highest first I.E

Answer 404

It has highest E.N

Answer 405

Potassium chlorate

Answer 406

Manganese dioxide

Answer 407

Mercuric oxide

Answer 408

Lead nitrate

Answer 409

Highest boiling points

Answer 410

Smaller ionic radii

Answer 411

Lower ionization energies

Answer 412

Greater hardness

Answer 413

Lower electro positivity

Answer 414

Low electronegativity

Answer 415

Low charge density

Answer 416

Lattice energies if solids

Answer 417

Hydration energies of cations

Answer 418

Inter ionic attraction

Answer 419

Entropy of solution formation

Answer 420

Inert gases

Answer 421

Alkali metals

Answer 422

Alkaline earth metals

Answer 423

Bluish green

Answer 424

Radish brown

Answer 425

Colourless

Answer 426

Borazole is polar compound

Answer 427

Borazole is nonpolar compound

Answer 428

Of localized electrons in it

Answer 429

Borazole is electron deficient compound

Answer 430

Diamagnetic

Answer 431

Ferromagnetic

Answer 432

Antiferromagnetic

Answer 433

Paramagnetic

Answer 434

2NaOH + CO₂ → Na₂CO₃ + H₂O

Answer 435

NH₃ + H₂CO₃ → NH₄HCO₃

Answer 436

NaCl + NH₄HCO₃ → NaHCO₃ + NH₄Cl

Answer 437

CO₃ + H₂O → H₂CO₃

Answer 438

a-2, b-3, c-1, d-4

Answer 439

a-1, b-4, c-2, d-3

Answer 440

a-3, b-1, c-4, d-2

Answer 441

a-4, b-1, c-3, d-2

Answer 442

Cannot be predicted

Answer 443

Sodium amide

Answer 444

Sodium atoms

Answer 445

Sodium hydride

Answer 446

Solvated electrons

Answer 447

Reaction with NaOH

Answer 448

Reaction with brine solution

Answer 449

Presence of NH₃

Answer 450

Reaction with CO₂

Answer 451

Calcium oxide

Answer 452

Hypochlorous acid

Answer 453

The lattice energy of BaSO₄ is more than its hydration energy

Answer 454

The hydration energy of Na₂SO₄ is more than its lattice energy

Answer 455

Both a and b

Answer 456

The lattice energy has no role to play in solubility

Answer 457

Entropy of solution formation

Answer 458

Inter – ionic attraction

Answer 459

Hydration energies of cations

Answer 460

Lattice energy solids

Answer 461

Oxyborates

Answer 462

‘Li’ is not effected by air

Answer 463

‘Li’ has a great tendency to form hydrates

Answer 464

When burn in oxygen, ‘Li’ forms super oxide LiO₂

Answer 465

‘Li’ combine with nitrogen directly to form Lithium nitride

Answer 466

They are all diatomic and form univalent ions

Answer 467

They can mutually displace each other from the solution of their compounds with metals

Answer 468

They are all diatomic and form divalent ions

Answer 469

They are all capable of exhibiting several oxidation states

Answer 470

Li₂CO₃ is soluble in water

Answer 471

Carbonates of Na, K, NH₄ are soluble in water

Answer 472

Carbonates of Ca, Ba, Sr are soluble in water

Answer 473

Basic carbonates of Mg and Cu are soluble in water

Answer 474

F > Br > Cl

Answer 475

Br > Cl > F

Answer 476

Cl > F > Br

Answer 477

F > Cl > Br

Answer 478

Isotopic number

Answer 479

Atomic mass

Answer 480

Atomic number

Answer 481

Mass number

Answer 482

Common salt

Answer 483

Carnallite

Answer 484

Alkali metals

Answer 485

Oxygen family

Answer 486

Nitrogen family

Answer 487

Non-metallic nature of fluorine

Answer 488

More electro negativity of fluorine

Answer 489

More electron repulsion in fluorine

Answer 490

Small size of fluorine

Answer 491

Oxidizing agents

Answer 492

Reducing agents

Answer 493

Drying agents

Answer 494

Oxidizing as well as reducing agents

Answer 495

High bond energy

Answer 496

Short internuclear distance

Answer 497

Absence of bond polarity

Answer 498

Multiple bond formation in the molecule

Answer 499

Ferrous ammonium sulphate

Answer 500

Magnesium ammonium phosphate

Answer 501

Calcium sulphates

Answer 502

Magnesium sulphates

Answer 503

Magnesium and chlorine

Answer 504

Potassium only

Answer 505

Magnesium only

Answer 506

Potassium and magnesium

Answer 507

Dinitrogen tetraoxide

Answer 508

Nitrous oxide

Answer 509

Nitric oxide

Answer 510

Nitrogen dioxide

Answer 511

Magnallium is one alloy of Mg and zinc

Answer 512

Sodium reduces CO₂ to carbon

Answer 513

Magnesium reacts with cold water and liberates hydrogen

Answer 514

In the Castner process of sodium extraction, NaCl is used as an electrolyte

Answer 515

Phosphorus pentoxidse

Answer 516

Active charcoal

Answer 517

Na₃PO₄

Answer 518

Anhydrous calcium chloride

Answer 519

Electron affinity

Answer 520

Hydration energy

Answer 521

Lattice energy

Answer 522

Ionization energy

Answer 523

Coordinate

Answer 524

Fluorine does not form oxoacid

Answer 525

Bond energy of fluorine is less than that of chlorine

Answer 526

Electron affinity of chlorine is greater than that of fluorine

Answer 527

Fluorine cannot be prepared by electrolysis of fused metal fluorides

Answer 528

Cl₂ > Br₂ > I₂ > F₂

Answer 529

Br₂ > Cl₂ > F₂ > I₂

Answer 530

I₂ > Br₂ > Cl₂ > F₂

Answer 531

F₂ > Cl₂ > Br₂ > I₂

Answer 532

Leads to the dissolution of beryllium metal

Answer 533

Precipitate Mg

Answer 534

Have no effect

Answer 535

Precipitate Mg metal

Answer 536

CO₂ and Ar

Answer 537

O₂ and Ar

Answer 538

O₂ and CO₂

Answer 539

O₂ and He

Answer 540

Paper printing

Answer 541

Cloth printing

Answer 542

Leather printing

Answer 543

Glass printing

Answer 544

None of these

Answer 545

Ionic and gas

Answer 546

Covalent and liquid

Answer 547

Ionic and liquid

Answer 548

Calcried gypsum

Answer 549

Sea shells

Answer 550

A marble states

Answer 551

Sulphur tetrachloride

Answer 552

Sulphuryl chloride

Answer 553

Thionyl chloride

Answer 554

Sulphur monochloride

Answer 555

Less dense then air and not flammable

Answer 556

Expensive but easy to store in cylinder

Answer 557

Lighter than air and cheap to produce

Answer 558

Expense, but a very uncreative gas

Answer 559

There is decrease in the nuclear charge of the alkaline earth metals

Answer 560

None of these

Answer 561

There is increase in the nuclear charge of the alkaline earth metals

Answer 562

There is no change in the nuclear charge

Answer 563

All the three

Answer 564

Reducing agent

Answer 565

Oxidizing agent

Answer 566

It is more reactive than other halogens

Answer 567

It has highest electronegativity

Answer 568

It restricts to oxidation state – 1 only

Answer 569

It has highest first ionization energy

Answer 570

Decreases down the group

Answer 571

Increases down the group

Answer 572

Variation is not regular

Answer 573

Remains unchanged

Answer 574

Ca and CO₂

Answer 575

Atomic masses

Answer 576

Nuclear masses

Answer 577

Nuclear neutron-proton number rations

Answer 578

Atomic numbers

Answer 579

Tetrahedral

Answer 580

Distorted octahedral

Answer 581

None of these

Answer 582

1, 12, 30, 4, 62

Answer 583

12, 20, 56, 88

Answer 584

37, 19, 3, 55

Answer 585

9, 17, 35, 53

Answer 586

Additive electrons are accommodated in new electron level

Answer 587

Effective nuclear charge increases

Answer 588

Atomic number increases

Answer 589

Atomic mass increases

Answer 590

SO₃ is insoluble in H₂O

Answer 591

The reaction is quite slow

Answer 592

The reaction is highly exothermic

Answer 593

The reaction does not go to completion

Answer 594

Both have similar electronic configurations

Answer 595

The ratio of their charge to size is nearly the same

Answer 596

Both are found together in nature

Answer 597

Both have nearly the same size

Answer 598

Mixture of helium and oxygen

Answer 599

Mixture of neon and oxygen

Answer 600

Mixture of xenon and nitrogen

Answer 601

Mixture of argon and oxygen

Answer 602

Both oxidized and reduced

Answer 603

Liquid crystal

Answer 604

Cage compound

Answer 605

Solid solution

Answer 606

Iron and sulphur

Answer 607

Gallium and Germanium

Answer 608

Aluminum and silicon

Answer 609

Proton and silicon

Answer 610

Decease in resistance with intensity of light

Answer 611

Different resistance under different circumstance

Answer 612

Increase in resistance with increase in temperature

Answer 613

Decrease in resistance with increase in temperature

Answer 614

-2, +2, +6

Answer 615

+2, +4, +6

Answer 616

Strongest vanderwaal’s force

Answer 617

H. bonding

Answer 618

Dipole-dipole forces

Answer 619

None of these

Answer 620

Noble gases have o heat of vapourization

Answer 621

It increases gradually down the group

Answer 622

None of these

Answer 623

It decreases gradually down the group

Answer 624

Refrigerant

Answer 625

Insecticide

Answer 626

For preparing artificial

Answer 627

As an abrasive in the form of abundum

Answer 628

As an oxidizer in metallurgy

Answer 629

In form of foil for wrapping

Answer 630

Plaster of Paris is obtained by partial oxidation of gypsum

Answer 631

Gypsum is obtained by heating plaster of pairs

Answer 632

Plaster of Pairs can be obtained by partial oxidation of gypsum

Answer 633

Gypsum contains a lower percentage of calcium than plaster of pairs

Answer 634

Sulphurous acid

Answer 635

Dithionic acid

Answer 636

Pyrosulphuric acid

Answer 637

Carlo’s acid

Answer 638

Al₂(OH)₄

Answer 639

Na₂Al(OH)₄

Answer 640

Na₃AlO₃

Answer 641

Chromous chloride

Answer 642

Chromic chloride

Answer 643

Chromyl chloride

Answer 644

Boiling point

Answer 645

Atomic radius

Answer 646

Ionization energy

Answer 647

Three layers are maintained at different temperatures

Answer 648

Three layers have different densities

Answer 649

There is special arrangement is cell to keep the layers separate

Answer 650

The upper layer is kept attracted by cathode and lower layer is kept attracted by anode

Answer 651

First ionization energy

Answer 652

Ionic radius

Answer 653

Melting point

Answer 654

Electro negativity

Total Questions:	330
Time Allowed:	80 Minutes
Total Marks:	330
How to Attempt Test:	Please choose the right Option in MCQ-type question.
Test Helpful For:	Chemistry Test ECAT Test MDCAT Test FPSC/PPSC/SPSC/KPPSC/BPSC/AJKPSC/NTS Chemistry Interview Question Answer

Code	List I	Code	List II
a	XeF₄	1	Distorted octahedral
b	XeF₆	2	Tetrahedral
c	XeO₃	3	Square planar
d	XeO₄	4	Trigonal pyramidal

Chemistry The Halogens and Noble Gases Online Mcqs Test

Important Chemistry The Halogens and Noble Gases Question and Answer

Chemistry The Halogens and Noble Gases Practice Test Online With Explanation

Chemistry

How to Score High in Chemistry The Halogens and Noble Gases Online Mcqs Test?

Key Preparation Tips:

More Related Resources

Malik Tahir

2 Comments

Leave a Reply Cancel reply

Important Chemistry The Halogens and Noble Gases Question and Answer

Chemistry The Halogens and Noble Gases Practice Test Online With Explanation

Chemistry

How to Score High in Chemistry The Halogens and Noble Gases Online Mcqs Test?

Key Preparation Tips:

More Related Resources

Latest Updates

Malik Tahir

2 Comments

Leave a Reply Cancel reply