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Chemistry Group VA and VIA Elements Online Mcqs Test

Malik TahirLast Updated: October 14, 2025

Important Chemistry Group VA and VIA Elements Question and Answer

Total Questions:	55
Time Allowed:	30 Minutes
Total Marks:	55
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 Group VA and VIA Elements Practice Test Online With Explanation

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Page 1 of 3

Chemistry

1. Which of the following elements does not form stable diatomic molecules?

Iodine

Oxygen

Phosphorus

Nitrogen

2. For a reaction N₂O₃ + H₂O → 2HNO₂, the temperature required for this reaction is

450°C

250°C

25 °C

0°C

3. Which acid is prepared by Birkland’s and Ryde’s method?

HNO₃

H₂SO₄

HCl

HNO₂

4. Which of the following is formed by the action of water on sodium peroxide?

N₂

O₂

CO₂

H₂

5. Red P can be obtained from white P by

Dissolving it in CS₂ and crystallizing

Heating it with a catalyst in an inert atmosphere

Melting it ad pouring the liquid into water

Distilling it in an inert atmosphere

6. Nitrogen is not present in

Proteins

Amino acids

Urea

Fatty acids

7. An element that has a high ionization energy and tends to be chemically inactive would most likely to be

A transition element

A noble gas

An alkali metal

A halogen

8. White phosphorus is

A mono atomic gas

P₄, a tetrahedral solid

A linear diatomic molecule

P₅, a crown

9. Each of the following is true of white and red phosphorus except that they

Can be converted into one another

Can be oxidized by heating in air

Are both soluble in CS₂

Consist of the same kind of atoms

10. Which one of the following elements occurs free in nature?

11. The structure of white phosphorus is

Tetrahedral

Trigonal planer

Square planar

Pyramidal

12. Which of the following fluorides does not exist?

NF₅

SbF₅

PF₅

AsF₅

13. Sulphuric acid is anhydride of

Hydro Sulphuric acid

Hyposulphuric acid

Sulphuric acid

Sulphurous acid

14. The electronegativity of the following elements increases in the order

Si, P, C, N

P, Si, N, C

N, Si, C, P

C, N, Si, P

15. Chlorine is used for

As a bleaching agent

All of these

Extraction of gold

Purification of water

16. Which one has no allotropes?

Arsenic

Nitrogen

Phosphorus

Antimony

17. White P when boiled with strong solution of caustic soda produces?

Posh acid

None

Phosphorous acid

Phosphine

18. Which gas has a pungent smell?

N₂O

N₂O₃

NO₂

19. NO₂ o dissolution in water produce

HNO₂

HNO₂ and NO

HNO₃ and HNO₂

HNO₃

20. Which of the following has only oxidation state 3?

21. Ring test is used for confirmation of

Nitrates

None

Phosphates

Arsenates

22. Out of all elements of group VA, the highest melting and boiling points is shown by the elements

23. Atmospheric N2 and O2 react to give nitric oxide in an electric are temperature required is

2000 C

3000 C

300 C

200 C

24. Out of all elements of group VA, the highest ionization energy is possessed by

25. Which of the following elements is most metallic?

Page 2 of 3

26. Relatively pure sulphuric acid is manufactured by

Contact process

Lead chamber process

Haber’s process

Castner’s process

27. Sodium hexametaphosphate is known as

Natalite

Nitrolim

Calgon

Permutite

28. Oxidation of NO in air produces

N₂O₄

N₂O

N₂O₃

29. Which one of the following pentafluorides cannot be formed?

BiF₅

AsF₅

SbF₅

PF₅

30. Which one is colored among the following?

SO₂

N₂O

None of these

31. Which catalyst is used in contact process?

SO₃

Ag₂O

Fe₂O₃

V₂O₅

32. When SO₂ is passed through acidified K₂Cr₂O₇ solution?

The solution is decolourised

SO₂ is reduced

The solution turns blue

Green Cr₂(SO₄)₃ is formed

33. Which of the element of ( V ) group is metal?

Nitron

Arsenic

Antimony

Bismuth

34. Laughing gas is

N₂O

N₂O₃

NO₂

35. Dinitrogen pentaoxide has oxidation no of nitrogen

36. At room temperature fluorine is

Shiny grayish

Greenish yellow gas

Pale yellow gas

Red brown liquid

37. Relative sulphuric acid is manufactured by

Castoner’s process

Contact process

Lead chamber process

Haber’s process

38. Group VA of the periodic table consists of the elements N, P, As, Sb and Bi, On passing from N to Bi, the oxides of the elements of general formula M₂O₃ become

More volatile

More ionic

More basic

Stronger reducing agents

39. Oleum is

None of these

Oil of vitriol

Castor oil

Fuming of H₂SO₄

40. All elements of VI A group are

Metalloids

Metals

Non-metals

None

41. Nitrogen is a gas while other elements of the same group are

Liquids

Solids

Semisolid

Semiliquid

42. BiCl₃ on hydrolysis forms a white precipitate of

Bismuth oxychloride

Bismuthio acid

Bismuth hydroxide

Bismuth pent chloride

43. Phosphine is not obtained by the reaction when

PH₄I is boiled with water

White P is heated with NaOH

Ca₂P₂ reacts with water

Red P is heated with NaOH

44. One of the following is radioactive metal

45. Nitrogen and phosphorus forms compounds

Covalent

Ionic

Nitrogen forms covalent and phosphorus ionic

Covalent as well as ionic frequently

46. Which gas is produced when HNO₂ reacts with organic compounds contains NH₂ group?

NH₃

NO₂

N₂

47. Ozone is not

A powerful oxidizing agent

Paramagnetic

A bent molecule

An allotrope

48. The brown gas formed when metal reduces HNO₃

N₂O

N₂O₅

NO₂

49. Which of the following group VA elements is gas at room temperature?

50. Which statement about oxygen and sulphur is not true?

Both combine with metals to form O²¯ and S²¯

Both are usually divalent

Both exhibit allotropic form

Both are paramagnetic

Page 3 of 3

51. Which element form group 15 gives most basic compound with hydrogen?

Bismuth

Arsenic

Phosphorus

Nitrogen

52. When H2 SO 4one reacts with oxalic acid it acts as

As a drying agent

Oxidizing agent

Reducing agent

As acid

53. Sulphur trioxide is an anhydride of

Hydro sulphuric

Sulphurous acid

None of these

Sulphuric acid

54. The highest M.P. is possessed by in vi A group

55. Phosphorus pentoxide finds use as

A reducing agent

An oxidizing agent

A dehydrating agent

A bleaching agent

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Malik TahirLast Updated: October 14, 2025

Important Chemistry Group VA and VIA Elements Question and Answer

Chemistry Group VA and VIA Elements Practice Test Online With Explanation

Chemistry

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Malik Tahir