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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 acid is prepared by Birkland’s and Ryde’s method?

HCl

HNO₂

H₂SO₄

HNO₃

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

CO₂

O₂

N₂

H₂

3. Sulphur trioxide is an anhydride of

None of these

Hydro sulphuric

Sulphurous acid

Sulphuric acid

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

Phosphorus

Oxygen

Nitrogen

Iodine

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

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

P, Si, N, C

C, N, Si, P

Si, P, C, N

N, Si, C, P

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

8. Nitrogen is not present in

Urea

Fatty acids

Amino acids

Proteins

9. Which one is colored among the following?

SO₂

None of these

N₂O

10. The structure of white phosphorus is

Pyramidal

Trigonal planer

Tetrahedral

Square planar

11. The brown gas formed when metal reduces HNO₃

N₂O

NO₂

N₂O₅

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

AsF₅

BiF₅

SbF₅

PF₅

13. NO₂ o dissolution in water produce

HNO₂ and NO

HNO₂

HNO₃ and HNO₂

HNO₃

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

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 volatile

Stronger reducing agents

More basic

More ionic

16. Ozone is not

Paramagnetic

A bent molecule

A powerful oxidizing agent

An allotrope

17. Which catalyst is used in contact process?

Fe₂O₃

V₂O₅

SO₃

Ag₂O

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

None

Phosphorous acid

Phosphine

Posh acid

19. Which gas has a pungent smell?

N₂O

NO₂

N₂O₃

20. When SO₂ is passed through acidified K₂Cr₂O₇ solution?

SO₂ is reduced

Green Cr₂(SO₄)₃ is formed

The solution is decolourised

The solution turns blue

21. One of the following is radioactive metal

22. Laughing gas is

N₂O₃

NO₂

N₂O

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

Arsenic

Nitron

Bismuth

Antimony

24. BiCl₃ on hydrolysis forms a white precipitate of

Bismuthio acid

Bismuth pent chloride

Bismuth oxychloride

Bismuth hydroxide

25. Phosphorus pentoxide finds use as

A bleaching agent

A dehydrating agent

An oxidizing agent

A reducing agent

Page 2 of 3

26. Relative sulphuric acid is manufactured by

Lead chamber process

Castoner’s process

Contact process

Haber’s process

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

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

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

300 C

3000 C

200 C

2000 C

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

450°C

0°C

250°C

25 °C

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

NH₃

N₂

NO₂

32. At room temperature fluorine is

Shiny grayish

Red brown liquid

Pale yellow gas

Greenish yellow gas

33. Relatively pure sulphuric acid is manufactured by

Contact process

Castner’s process

Haber’s process

Lead chamber process

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

Consist of the same kind of atoms

Can be oxidized by heating in air

Can be converted into one another

Are both soluble in CS₂

35. White phosphorus is

P₅, a crown

A mono atomic gas

A linear diatomic molecule

P₄, a tetrahedral solid

36. 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

37. Ring test is used for confirmation of

Nitrates

None

Arsenates

Phosphates

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

Both are paramagnetic

Both are usually divalent

Both exhibit allotropic form

Both combine with metals to form O²¯ and S²¯

39. Which of the following elements is most metallic?

40. Red P can be obtained from white P by

Heating it with a catalyst in an inert atmosphere

Dissolving it in CS₂ and crystallizing

Distilling it in an inert atmosphere

Melting it ad pouring the liquid into water

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

Bismuth

Phosphorus

Arsenic

Nitrogen

42. Which one has no allotropes?

Nitrogen

Antimony

Arsenic

Phosphorus

43. Oxidation of NO in air produces

N₂O₃

N₂O

N₂O₄

44. Nitrogen and phosphorus forms compounds

Covalent as well as ionic frequently

Covalent

Nitrogen forms covalent and phosphorus ionic

Ionic

45. Sodium hexametaphosphate is known as

Nitrolim

Permutite

Natalite

Calgon

46. Dinitrogen pentaoxide has oxidation no of nitrogen

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

Solids

Liquids

Semisolid

Semiliquid

48. Sulphuric acid is anhydride of

Sulphuric acid

Hyposulphuric acid

Hydro Sulphuric acid

Sulphurous acid

49. Chlorine is used for

All of these

As a bleaching agent

Purification of water

Extraction of gold

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

Page 3 of 3

51. Which of the following fluorides does not exist?

PF₅

NF₅

AsF₅

SbF₅

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

A halogen

A noble gas

A transition element

An alkali metal

53. All elements of VI A group are

Metalloids

Non-metals

Metals

None

54. Oleum is

None of these

Fuming of H₂SO₄

Oil of vitriol

Castor oil

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

As acid

Reducing agent

As a drying agent

Oxidizing 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