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MDCAT Chemistry Group VA and VIA Elements Test Online

Malik TahirLast Updated: May 24, 2025

Chemistry Group VA and VIA Elements MCQS Online Test

MDCAT Chemistry Group VA and VIA Elements Chapter Online Test

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:	MDCAT Entry Test Chemistry Online Test Interview Questions about Chemisttry All Universities Entrance Test Recruitments Tests

MDCAT Chemistry Group VA and VIA Elements Test

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Page 1 of 3

Chemistry

1. 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

2. 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

3. Which one has no allotropes?

Phosphorus

Antimony

Nitrogen

Arsenic

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

P, Si, N, C

Si, P, C, N

C, N, Si, P

N, Si, C, P

5. At room temperature fluorine is

Red brown liquid

Pale yellow gas

Greenish yellow gas

Shiny grayish

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

Bismuth

Phosphorus

Nitrogen

Arsenic

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

8. Oxidation of NO in air produces

N₂O

N₂O₄

N₂O₃

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

Both are paramagnetic

Both combine with metals to form O²¯ and S²¯

Both exhibit allotropic form

Both are usually divalent

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

Oxidizing agent

As acid

As a drying agent

Reducing agent

11. 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 transition element

A noble gas

12. Which one is colored among the following?

SO₂

N₂O

None of these

13. Which of the following fluorides does not exist?

SbF₅

AsF₅

NF₅

PF₅

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

Liquids

Semisolid

Solids

Semiliquid

15. Nitrogen and phosphorus forms compounds

Ionic

Covalent as well as ionic frequently

Nitrogen forms covalent and phosphorus ionic

Covalent

16. Oleum is

None of these

Oil of vitriol

Fuming of H₂SO₄

Castor oil

17. NO₂ o dissolution in water produce

HNO₃ and HNO₂

HNO₂ and NO

HNO₃

HNO₂

18. The structure of white phosphorus is

Square planar

Pyramidal

Trigonal planer

Tetrahedral

19. Red P can be obtained from white P by

Melting it ad pouring the liquid into water

Distilling it in an inert atmosphere

Dissolving it in CS₂ and crystallizing

Heating it with a catalyst in an inert atmosphere

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

Phosphine

None

Posh acid

Phosphorous acid

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

22. Relative sulphuric acid is manufactured by

Haber’s process

Castoner’s process

Lead chamber process

Contact process

23. Sodium hexametaphosphate is known as

Nitrolim

Permutite

Calgon

Natalite

24. Nitrogen is not present in

Fatty acids

Urea

Proteins

Amino acids

25. The brown gas formed when metal reduces HNO₃

NO₂

N₂O

N₂O₅

Page 2 of 3

26. Phosphine is not obtained by the reaction when

White P is heated with NaOH

Red P is heated with NaOH

PH₄I is boiled with water

Ca₂P₂ reacts with water

27. All elements of VI A group are

Metalloids

None

Non-metals

Metals

28. Which of the following elements is most metallic?

29. Laughing gas is

N₂O₃

N₂O

NO₂

30. Ozone is not

A bent molecule

An allotrope

Paramagnetic

A powerful oxidizing agent

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

PF₅

SbF₅

BiF₅

AsF₅

32. White phosphorus is

A linear diatomic molecule

A mono atomic gas

P₅, a crown

P₄, a tetrahedral solid

33. Dinitrogen pentaoxide has oxidation no of nitrogen

34. Which gas has a pungent smell?

N₂O

NO₂

N₂O₃

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

Oxygen

Phosphorus

Iodine

Nitrogen

36. Phosphorus pentoxide finds use as

A bleaching agent

An oxidizing agent

A dehydrating agent

A reducing agent

37. 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

38. Which catalyst is used in contact process?

Fe₂O₃

V₂O₅

Ag₂O

SO₃

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

Antimony

Nitron

Bismuth

Arsenic

40. One of the following is radioactive metal

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

250°C

25 °C

0°C

450°C

42. Sulphuric acid is anhydride of

Sulphurous acid

Hydro Sulphuric acid

Sulphuric acid

Hyposulphuric acid

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

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

300 C

2000 C

200 C

3000 C

45. Ring test is used for confirmation of

Nitrates

Phosphates

Arsenates

None

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

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

HNO₂

H₂SO₄

HNO₃

HCl

48. Relatively pure sulphuric acid is manufactured by

Lead chamber process

Castner’s process

Haber’s process

Contact process

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

NO₂

NH₃

N₂

50. Chlorine is used for

As a bleaching agent

Purification of water

All of these

Extraction of gold

Page 3 of 3

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

52. Sulphur trioxide is an anhydride of

Sulphuric acid

Hydro sulphuric

None of these

Sulphurous acid

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

54. BiCl₃ on hydrolysis forms a white precipitate of

Bismuth pent chloride

Bismuth hydroxide

Bismuthio acid

Bismuth oxychloride

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

CO₂

N₂

O₂

H₂

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Malik TahirLast Updated: May 24, 2025

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Chemistry Group VA and VIA Elements MCQS Online Test

MDCAT Chemistry Group VA and VIA Elements Chapter Online Test

MDCAT Chemistry Group VA and VIA Elements Test

Chemistry

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