Chemistry Periodic Classification Of Elements & Periodicity Online Test

Q: How can I prepare for Chemistry Periodic Classification Of Elements & Periodicity Online Test?

You can prepare for Chemistry Periodic Classification Of Elements & Periodicity Online 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. Oxidation state of an atomic represent

Answer

No of e gained or/lost

Answer

No of e gained

Answer

No of e lost

Question 2

2. Modern periodic table has been divided in _________ blocks.

Question 3

3. Mark the correct statement

Answer

The ionization energy of calcium is lower than that of barium

Answer

The ionization energy of calcium is than that of beryllium

Answer

The ionization energy of calcium is higher than that of magnesium

Answer

The ionization energy of calcium is lower than that of strontium

Question 4

4. The valency of noble gases, in general, is

Question 5

5. The electronegativity of Si is

Question 6

6. The alkali metal which is liquid at 15°C is

Question 7

7. Which statement is correct?

Answer

Hydrogen resembles in properties with IA, IVA and VIIA elements

Answer

Hydrogen resembles in properties with IIA, IVA and VIA elements

Answer

Hydrogen resembles in properties with IIA, IIIA and VIIIA elements

Answer

Hydrogen resembles in properties with IIIA, IVA and VA elements

Question 8

8. Which of the following does not reflect the periodicity of elements?

Answer

Electronegativity

Answer

Neutron/proton ration

Answer

Ionization potential

Answer

Bonding behavior

Question 9

9. Which of the following possess maximum hydration power?

Question 10

10. Which of the following metal requires radiation of highest frequency to cause emission of electrons?

Question 11

11. Elements whose atoms have two outermost shells incomplete are called

Answer

s – block elements

Answer

p – block elements

Answer

d – block elements

Answer

f – block elements

Question 12

12. The electronegativity of Sodium is

Question 13

13. Which element was not known when Mendeleev proposed his classification?

Question 14

14. Which of the following has greatest tendency lose electron?

Question 15

15. Among the elements given below, the one with highest electro positivity is

Question 16

16. Elements were classified into groups of three called as trades by

Answer

Lother Meyer

Answer

Dobereiner

Answer

Rutherford

Question 17

17. The property which increases up to the middle of the period and then decreases is

Answer

Atomic radii

Answer

Atomic volume

Answer

Ionization energy

Answer

m.P and B.P

Question 18

18. Which of the following set consist of all coinage metals?

Answer

Ag, Au, Hg

Answer

Cu, Fe, Au

Answer

Cu, Ag, Au

Answer

Cu, Hg, Au

Question 19

19. The elements which behave as metalloid is:

Question 20

20. Which of the following statements is most appropriate about effective nuclear charge? It depends upon?

Answer

The charge on the nucleus

Answer

Both the nuclear charge and the shielding constant

Answer

The shielding constant

Answer

The atomic number

Question 21

21. Which of the following pairs are chemically dissimilar?

Question 22

22. Which one of the following is not a periodic property?

Answer

Coordination number of icons

Answer

BP of elements

Answer

MP of elements

Answer

Ionization energy of elements

Question 23

23. Chemically the most similar pair of elements is

Question 24

24. An element having low value of ionization energy and low value of electron affinity is likely to belong to

Answer

Group VIII

Answer

Group VII A

Question 25

25. Hydrogen resembles with carbon because of having

Answer

Same number of electrons in the valence shell

Answer

Remarkable reducing properties

Answer

Similar physical state

Answer

Homovalent (show same valency)

Question 26

26. Which of these Period 3 element has lowest electronegativity?

Question 27

27. The longest period in the modern periodic table is

Answer

2nd and 3rd both

Question 28

28. Which discovery caused a revision in periodic law as predicted by Mendeleev?

Answer

Location of nucleus by Rutherford

Answer

Atomic number by Moseley

Answer

x-rays by Roentgen

Answer

Henry Becquerel’s natural radioactivity

Question 29

29. The attempt of classification of elements by plotting the atomic weight of elements against their volumes was made

Answer

Dobereiner

Answer

Lother Meyer

Question 30

30. The 14 elements have been placed in VI period and II group of periodic table. These are called

Answer

Alkaline earth metals

Answer

Rare earth metals

Answer

Alkali metals

Answer

Inert gases

Question 31

31. Californium is the member of

Answer

Actinide series

Answer

Alkali metals

Answer

Lanthanide series

Answer

Alkaline earth metals

Question 32

32. The atomic radii decreases by increasing atomic number in

Answer

Alkaline earth metal

Answer

Alkali metal

Answer

Elements from Li to Ne

Question 33

33. Elements in the same vertical group of the periodic table have same

Answer

Atomic number

Answer

Number of valence electrons

Answer

Atomic mass

Answer

Atomic volume

Question 34

34. The electron affinity values (in kJ mol¯¹) of three halogens X, Y and Z are respectively – 349, -333 and -325. Then X, Y and Z respectively are:

Answer

Cl, F and Br

Answer

Br, Cl and F

Answer

Cl, Br and F

Answer

F, Cl and Br

Question 35

35. Oxidation state of an atom represent

Answer

Its vacancies

Answer

Apparent charge I compound

Answer

Number of electrons gained

Answer

Number of electrons lost

Question 36

36. The property which increases up to group IV-A then decreases onwards

Answer

Atomic radii

Answer

Melting & boiling points

Answer

Ionization energy

Answer

Atomic volume

Question 37

37. Of the given alkali metals, the one with smallest size is

Question 38

38. Which one has least ionization Potential?

Question 39

39. Non-metals usually form ________ oxides.

Answer

Amphoteric

Answer

All of the above

Question 40

40. The attraction that an atom exerts on a pair of electrons that are being shared with another atom for forming covalent bond is referred to as its

Answer

Electronegativity

Answer

Ionization energy

Answer

Electron affinity

Question 41

41. Modern periodic table has been divided in __________ block.

Question 42

42. Inner transition elements are called

Answer

Rare earth metals

Answer

Lanthanides

Question 43

43. Which of the following elements is/are not liquid at 30°C?

Question 44

44. The discovery of which of the following group of elements give below to the Newland’s law of octaves?

Answer

Alkaline earths

Answer

Inert gases

Answer

Rare earths

Question 45

45. Which set of elements is listed in order of increasing ionization energy?

Answer

Sb < As < Cl < S < P

Answer

As < Cl < P < S < Sb

Answer

Sb < As < S < P < Cl

Answer

Cl < Sb < P < As < S

Question 46

46. Periodic table provides a basic framework to study elements with respect to their

Answer

Physical properties

Answer

Chemical properties

Answer

Properties of their compounds

Question 47

47. IN the light of Mendeleev’s periodic law,. the properties of elements are periodic function of their

Answer

Atomic numbers

Answer

Atomic masses

Question 48

48. The correct arrangement of increasing order of atomic radius among Na, K, Mg, Rb is

Answer

Na < K < Rb < Mg

Answer

Mg < Na < K < Rb

Answer

Mg < K < Na < Rb

Answer

Mg < Na < Rb < K

Question 49

49. The element with highest first ionization energy is

Question 50

50. Among O, C, F, Cl, Br, the correct order of increasing radii is

Answer

F C O Cl Br

Answer

C O F Cl Br

Answer

F O C Cl Br

Answer

F Cl Br O C

Question 51

51. White enamel of our teeth is

Answer

Ca₃ (PO4)₂

Question 52

52. Which of the pairs belongs to the same group of periodic table?

Answer

Elements with atomic number 17 and 38

Answer

Elements with atomic number 11 and 33

Answer

Elements with atomic numbers 20 and 40

Answer

Elements with atomic number 17 and 53

Question 53

53. Noble gases are named so because they are

Answer

Having completely filled valence shell

Answer

Zero group element

Question 54

54. Which of the following pair of atomic numbers represents s-block element?

Question 55

55. Keeping in view the size of atoms, which order in correct one

Question 56

56. Mark the Dobereiner triad

Answer

Zn, Cr, Na

Question 57

57. The formation of the oxide ion O²¯ (g) requires first a exothermic and then and endothermic step – as shown below:
O(g) +e – → O
∆Ho = – 142 k3 mol – 1
O– (g) + e– →O2 –(g)
∆Ho = + ∆H° = + 844 kJ mol¯¹
This is because:

Answer

O– ion has comparatively larger size oxygen atom

Answer

Oxygen is more electronegative

Answer

Oxygen has high electron affinity

Answer

O– ion will tend to resist the addition of another electron

Question 58

58. Which of the following groups of period table has entirely metals?

Question 59

59. Addition of 2nd e to uni-negative ion is always

Answer

Data is insufficient

Answer

Endothermic

Answer

Exothermic

Question 60

60. Elements whose outer electronic configuration vary from ns²np¹ to ns¹np⁶ constitute

Answer

d – block elements

Answer

f – block elements

Answer

s – block elements

Answer

p – block elements

Question 61

61. Metals form halides which are

Question 62

62. Which one is not an ionic hydride?

Question 63

63. The element with atomic number 55 belongs to which block of the periodic table

Question 64

64. The valence shell electronic stricture of an element is ns²np⁵. The element will belong to the group of

Answer

Noble gases

Answer

Inert metals

Answer

Alkali metals

Answer 128

Both are electropositive

Answer 129

Both are not found in free state

Answer 130

Similar electronic configuration

Answer 131

Halogens (VII-A)

Answer 132

Alkali metals (I-A)

Answer 133

Group-18 elements (VIII-A)

Answer 134

Group-14 elements (IV-A)

Answer 135

Highest electronegativity

Answer 136

Smallest size

Answer 137

Highest IE

Answer 138

Group VI-A

Answer 139

Group IV-A

Answer 140

Group VII-A

Answer 141

Group II-A

Answer 142

The reason is unknown

Answer 143

Atom will gain electron easily

Answer 144

Atom may form di-positive ion

Answer 145

Atom will lose electron easily

Answer 146

Decrease down the group

Answer 147

Remain same

Answer 148

No regular trend

Answer 149

Increase down the group

Answer 150

Both form ionic compounds

Answer 151

Similar outer most shell electronic configuration

Answer 152

Both are electropositive

Answer 153

4th period

Answer 154

5th period

Answer 155

3rd period

Answer 156

2nd period

Answer 157

Remains constant

Answer 158

Cannot be predicted

Answer 159

Both b & c

Answer 160

p block elements

Answer 161

Same family

Answer 162

Right upper corner

Answer 163

Same period

Answer 164

All are stable

Answer 165

Charge on its ions

Answer 166

Acidic or basic nature of oxides

Answer 167

The formula of its oxides

Answer 168

The number of isotopes it has

Answer 169

Rare earth metals

Answer 170

Lanthanides

Answer 171

Ca, Cr, Zn

Answer 172

Cr, In, Pb

Answer 173

Valence electrons

Answer 174

Atomic number

Answer 175

Atomic mass

Answer 176

Alkali metal

Answer 177

Alkaline earth metal

Answer 178

Elements from Li to Ne

Answer 179

All above statements are correct

Answer 180

Similar elements like Cu and Zn have been placed in different groups

Answer 181

K (at, wt.39.1) has been placed after argon (at, wt. 39.9)

Answer 182

In spite of their different properties, alkali metals and coinage metals have been grouped together

Answer 183

Melting points of halogens remains the same throughout the group

Answer 184

Melting points of halogens increases down the group

Answer 185

Melting points of halogens decrease down the group

Answer 186

Melting point of halogens first increase and then decrease down the group

Answer 187

All the noble gases are present in the same period

Answer 188

All halogens are present in the same period

Answer 189

All the alkali metals are present in the same period

Answer 190

All lanthanides are present in the same group

Answer 191

N₂ as well as Co₂

Answer 192

Na⁺ is smaller than Na atom

Answer 193

Cl⁺ (ions are equal in size)

Answer 194

Cl⁺ is smaller than Cl atom

Answer 195

Na⁺ is larger than Na atom

Answer 196

Transition elements

Answer 197

Normal elements

Answer 198

None of these

Answer 199

Metallic elements

Answer 200

7 horizontal and 18 vertical series

Answer 201

8 horizontal and 7 vertical series

Answer 202

8 horizontal and 18 vertical series

Answer 203

7 horizontal and 7 vertical series

Total Questions:	107
Time Allowed:	60 Minutes
Total Marks:	107
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

Chemistry Periodic Classification Of Elements & Periodicity Online Test

Important Periodic Classification Of Elements & Periodicity Question and Answer

Chemistry Periodic Classification Of Elements & Periodicity Practice Test Online With Explanation

Chemistry

How to Score High in Chemistry Periodic Classification Of Elements & Periodicity Online Test?

Key Preparation Tips:

Malik Tahir

One Comment

Leave a Reply Cancel reply

Important Periodic Classification Of Elements & Periodicity Question and Answer

Chemistry Periodic Classification Of Elements & Periodicity Practice Test Online With Explanation

Chemistry

How to Score High in Chemistry Periodic Classification Of Elements & Periodicity Online Test?

Key Preparation Tips:

Latest Updates

Malik Tahir

One Comment

Leave a Reply Cancel reply