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. The brown gas formed when metal reduces HNO₃

NO₂

N₂O₅

N₂O

2. All elements of VI A group are

Metalloids

Non-metals

Metals

None

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

Both combine with metals to form O²¯ and S²¯

Both exhibit allotropic form

Both are usually divalent

Both are paramagnetic

4. Nitrogen and phosphorus forms compounds

Covalent

Covalent as well as ionic frequently

Nitrogen forms covalent and phosphorus ionic

Ionic

5. Which gas has a pungent smell?

N₂O₃

NO₂

N₂O

6. BiCl₃ on hydrolysis forms a white precipitate of

Bismuthio acid

Bismuth oxychloride

Bismuth hydroxide

Bismuth pent chloride

7. Which of the following fluorides does not exist?

PF₅

NF₅

SbF₅

AsF₅

8. Oleum is

Oil of vitriol

Castor oil

None of these

Fuming of H₂SO₄

9. Nitrogen is not present in

Amino acids

Urea

Proteins

Fatty acids

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

11. Relatively pure sulphuric acid is manufactured by

Castner’s process

Haber’s process

Lead chamber process

Contact process

12. Which one is colored among the following?

N₂O

None of these

SO₂

13. Which one has no allotropes?

Antimony

Phosphorus

Arsenic

Nitrogen

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

Posh acid

None

Phosphine

Phosphorous acid

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

Oxygen

Nitrogen

Iodine

Phosphorus

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

Si, P, C, N

P, Si, N, C

C, N, Si, P

N, Si, C, P

17. Phosphine is not obtained by the reaction when

Red P is heated with NaOH

Ca₂P₂ reacts with water

PH₄I is boiled with water

White P is heated with NaOH

18. Ozone is not

A powerful oxidizing agent

A bent molecule

Paramagnetic

An allotrope

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

450°C

250°C

0°C

25 °C

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

Semisolid

Semiliquid

Solids

Liquids

21. Which of the following elements is most metallic?

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

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

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

Are both soluble in CS₂

Can be converted into one another

Can be oxidized by heating in air

Consist of the same kind of atoms

25. Red P can be obtained from white P by

Heating it with a catalyst in an inert atmosphere

Distilling it in an inert atmosphere

Melting it ad pouring the liquid into water

Dissolving it in CS₂ and crystallizing

Page 2 of 3

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

27. Oxidation of NO in air produces

N₂O

N₂O₃

N₂O₄

28. When SO₂ is passed through acidified K₂Cr₂O₇ solution?

The solution is decolourised

The solution turns blue

SO₂ is reduced

Green Cr₂(SO₄)₃ is formed

29. Which catalyst is used in contact process?

SO₃

Fe₂O₃

V₂O₅

Ag₂O

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

A halogen

An alkali metal

A noble gas

A transition element

31. Chlorine is used for

Extraction of gold

As a bleaching agent

Purification of water

All of these

32. At room temperature fluorine is

Greenish yellow gas

Pale yellow gas

Shiny grayish

Red brown liquid

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

34. Dinitrogen pentaoxide has oxidation no of nitrogen

35. 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 basic

Stronger reducing agents

More ionic

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

HCl

HNO₃

H₂SO₄

HNO₂

37. One of the following is radioactive metal

38. Phosphorus pentoxide finds use as

An oxidizing agent

A reducing agent

A bleaching agent

A dehydrating agent

39. White phosphorus is

P₄, a tetrahedral solid

A mono atomic gas

P₅, a crown

A linear diatomic molecule

40. Relative sulphuric acid is manufactured by

Castoner’s process

Haber’s process

Contact process

Lead chamber process

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

Oxidizing agent

Reducing agent

As acid

As a drying agent

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

43. Laughing gas is

N₂O

N₂O₃

NO₂

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

AsF₅

SbF₅

PF₅

BiF₅

45. The structure of white phosphorus is

Tetrahedral

Trigonal planer

Pyramidal

Square planar

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

O₂

H₂

CO₂

N₂

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

3000 C

300 C

2000 C

200 C

48. NO₂ o dissolution in water produce

HNO₃

HNO₂ and NO

HNO₃ and HNO₂

HNO₂

49. Ring test is used for confirmation of

Arsenates

None

Nitrates

Phosphates

50. Sodium hexametaphosphate is known as

Permutite

Natalite

Calgon

Nitrolim

Page 3 of 3

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

NO₂

N₂

NH₃

52. Sulphuric acid is anhydride of

Sulphurous acid

Sulphuric acid

Hydro Sulphuric acid

Hyposulphuric acid

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

Nitrogen

Bismuth

Arsenic

Phosphorus

54. Sulphur trioxide is an anhydride of

Sulphuric acid

Sulphurous acid

None of these

Hydro sulphuric

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

Bismuth

Arsenic

Nitron

Antimony

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Malik TahirLast Updated: October 14, 2025