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

Liquids

Semisolid

Semiliquid

Solids

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

3. When SO₂ is passed through acidified K₂Cr₂O₇ solution?

The solution turns blue

Green Cr₂(SO₄)₃ is formed

SO₂ is reduced

The solution is decolourised

4. Which of the following elements is most metallic?

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

0°C

25 °C

250°C

450°C

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

N₂

NO₂

NH₃

7. One of the following is radioactive metal

8. The structure of white phosphorus is

Trigonal planer

Pyramidal

Square planar

Tetrahedral

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

Are both soluble in CS₂

Can be oxidized by heating in air

Consist of the same kind of atoms

Can be converted into one another

10. Which catalyst is used in contact process?

V₂O₅

Ag₂O

Fe₂O₃

SO₃

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

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

Phosphine

Posh acid

None

Phosphorous acid

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

HNO₂

H₂SO₄

HNO₃

HCl

14. At room temperature fluorine is

Red brown liquid

Pale yellow gas

Greenish yellow gas

Shiny grayish

15. 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 ionic

More basic

Stronger reducing agents

More volatile

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

17. Oleum is

Fuming of H₂SO₄

None of these

Castor oil

Oil of vitriol

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

19. Which one is colored among the following?

N₂O

SO₂

None of these

20. Sodium hexametaphosphate is known as

Natalite

Calgon

Nitrolim

Permutite

21. White phosphorus is

A linear diatomic molecule

P₅, a crown

P₄, a tetrahedral solid

A mono atomic gas

22. Phosphorus pentoxide finds use as

A reducing agent

An oxidizing agent

A bleaching agent

A dehydrating agent

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

Oxygen

Iodine

Phosphorus

Nitrogen

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

CO₂

N₂

O₂

H₂

25. Red P can be obtained from white P by

Dissolving it in CS₂ and crystallizing

Melting it ad pouring the liquid into water

Distilling it in an inert atmosphere

Heating it with a catalyst in an inert atmosphere

Page 2 of 3

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

N, Si, C, P

C, N, Si, P

P, Si, N, C

Si, P, C, N

27. NO₂ o dissolution in water produce

HNO₂

HNO₂ and NO

HNO₃ and HNO₂

HNO₃

28. BiCl₃ on hydrolysis forms a white precipitate of

Bismuth oxychloride

Bismuthio acid

Bismuth hydroxide

Bismuth pent chloride

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

Antimony

Arsenic

Nitron

Bismuth

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

200 C

300 C

2000 C

3000 C

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

AsF₅

BiF₅

SbF₅

PF₅

32. Laughing gas is

NO₂

N₂O₃

N₂O

33. Chlorine is used for

Extraction of gold

All of these

As a bleaching agent

Purification of water

34. Nitrogen and phosphorus forms compounds

Ionic

Nitrogen forms covalent and phosphorus ionic

Covalent

Covalent as well as ionic frequently

35. Ring test is used for confirmation of

Arsenates

Nitrates

None

Phosphates

36. Phosphine is not obtained by the reaction when

Red P is heated with NaOH

White P is heated with NaOH

Ca₂P₂ reacts with water

PH₄I is boiled with water

37. Relatively pure sulphuric acid is manufactured by

Haber’s process

Contact process

Lead chamber process

Castner’s process

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

39. Nitrogen is not present in

Fatty acids

Amino acids

Proteins

Urea

40. Sulphur trioxide is an anhydride of

Sulphuric acid

Hydro sulphuric

Sulphurous acid

None of these

41. Which of the following fluorides does not exist?

PF₅

AsF₅

SbF₅

NF₅

42. Ozone is not

An allotrope

Paramagnetic

A powerful oxidizing agent

A bent molecule

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

An alkali metal

A halogen

A transition element

A noble gas

44. Dinitrogen pentaoxide has oxidation no of nitrogen

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

Both exhibit allotropic form

Both combine with metals to form O²¯ and S²¯

Both are usually divalent

Both are paramagnetic

46. Oxidation of NO in air produces

N₂O

N₂O₃

N₂O₄

47. The brown gas formed when metal reduces HNO₃

N₂O

NO₂

N₂O₅

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

Nitrogen

Phosphorus

Arsenic

Bismuth

49. Which one has no allotropes?

Phosphorus

Antimony

Nitrogen

Arsenic

50. Which gas has a pungent smell?

N₂O

N₂O₃

NO₂

Page 3 of 3

51. Sulphuric acid is anhydride of

Sulphurous acid

Hyposulphuric acid

Hydro Sulphuric acid

Sulphuric acid

52. Relative sulphuric acid is manufactured by

Contact process

Lead chamber process

Haber’s process

Castoner’s process

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

As acid

Oxidizing agent

As a drying agent

Reducing agent

54. All elements of VI A group are

Non-metals

Metals

Metalloids

None

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

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Malik TahirLast Updated: October 14, 2025