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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. White phosphorus is

A mono atomic gas

P₄, a tetrahedral solid

A linear diatomic molecule

P₅, a crown

2. When SO₂ is passed through acidified K₂Cr₂O₇ solution?

SO₂ is reduced

The solution turns blue

The solution is decolourised

Green Cr₂(SO₄)₃ is formed

3. Red P can be obtained from white P by

Distilling it in an inert atmosphere

Melting it ad pouring the liquid into water

Dissolving it in CS₂ and crystallizing

Heating it with a catalyst in an inert atmosphere

4. Phosphorus pentoxide finds use as

An oxidizing agent

A bleaching agent

A reducing agent

A dehydrating agent

5. Chlorine is used for

As a bleaching agent

Purification of water

All of these

Extraction of gold

6. Dinitrogen pentaoxide has oxidation no of nitrogen

7. Ring test is used for confirmation of

Phosphates

None

Nitrates

Arsenates

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

Phosphorus

Nitrogen

Bismuth

Arsenic

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

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

SbF₅

BiF₅

PF₅

AsF₅

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

HNO₃

H₂SO₄

HCl

HNO₂

12. 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 basic

More volatile

Stronger reducing agents

More ionic

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

O₂

N₂

H₂

CO₂

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

Both exhibit allotropic form

Both are paramagnetic

Both combine with metals to form O²¯ and S²¯

Both are usually divalent

15. Which of the following fluorides does not exist?

AsF₅

PF₅

NF₅

SbF₅

16. Which catalyst is used in contact process?

Fe₂O₃

V₂O₅

Ag₂O

SO₃

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

N, Si, C, P

P, Si, N, C

C, N, Si, P

Si, P, C, N

18. Which one is colored among the following?

N₂O

SO₂

None of these

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

0°C

450°C

25 °C

250°C

20. Oleum is

None of these

Castor oil

Oil of vitriol

Fuming of H₂SO₄

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

22. One of the following is radioactive metal

23. NO₂ o dissolution in water produce

HNO₂ and NO

HNO₂

HNO₃

HNO₃ and HNO₂

24. All elements of VI A group are

Non-metals

Metalloids

None

Metals

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

Page 2 of 3

26. The brown gas formed when metal reduces HNO₃

NO₂

N₂O

N₂O₅

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

N₂

NH₃

NO₂

28. Which gas has a pungent smell?

N₂O

N₂O₃

NO₂

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

30. Nitrogen and phosphorus forms compounds

Ionic

Nitrogen forms covalent and phosphorus ionic

Covalent

Covalent as well as ionic frequently

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

Solids

Semisolid

Liquids

Semiliquid

32. Ozone is not

Paramagnetic

An allotrope

A powerful oxidizing agent

A bent molecule

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

300 C

200 C

2000 C

3000 C

34. Sulphur trioxide is an anhydride of

Sulphuric acid

None of these

Sulphurous acid

Hydro sulphuric

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

Oxidizing agent

As acid

As a drying agent

Reducing agent

36. Sodium hexametaphosphate is known as

Calgon

Nitrolim

Natalite

Permutite

37. Oxidation of NO in air produces

N₂O

N₂O₃

N₂O₄

38. At room temperature fluorine is

Greenish yellow gas

Shiny grayish

Pale yellow gas

Red brown liquid

39. Laughing gas is

N₂O

N₂O₃

NO₂

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

Posh acid

None

Phosphine

Phosphorous acid

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

Bismuth

Arsenic

Nitron

Antimony

42. Which one has no allotropes?

Nitrogen

Arsenic

Phosphorus

Antimony

43. Sulphuric acid is anhydride of

Sulphurous acid

Hydro Sulphuric acid

Sulphuric acid

Hyposulphuric acid

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

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

An alkali metal

A noble gas

A halogen

A transition element

46. Relatively pure sulphuric acid is manufactured by

Lead chamber process

Contact process

Haber’s process

Castner’s process

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

48. Nitrogen is not present in

Amino acids

Proteins

Fatty acids

Urea

49. BiCl₃ on hydrolysis forms a white precipitate of

Bismuth pent chloride

Bismuth hydroxide

Bismuthio acid

Bismuth oxychloride

50. Phosphine is not obtained by the reaction when

Ca₂P₂ reacts with water

Red P is heated with NaOH

White P is heated with NaOH

PH₄I is boiled with water

Page 3 of 3

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

Can be oxidized by heating in air

Can be converted into one another

Are both soluble in CS₂

Consist of the same kind of atoms

52. The structure of white phosphorus is

Pyramidal

Tetrahedral

Square planar

Trigonal planer

53. Relative sulphuric acid is manufactured by

Haber’s process

Lead chamber process

Contact process

Castoner’s process

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

Oxygen

Nitrogen

Iodine

Phosphorus

55. Which of the following elements is most metallic?

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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