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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. Relative sulphuric acid is manufactured by

Haber’s process

Contact process

Castoner’s process

Lead chamber process

2. NO₂ o dissolution in water produce

HNO₃

HNO₃ and HNO₂

HNO₂ and NO

HNO₂

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

Both are paramagnetic

Both combine with metals to form O²¯ and S²¯

Both are usually divalent

Both exhibit allotropic form

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

N₂

CO₂

O₂

H₂

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

A noble gas

A transition element

A halogen

An alkali metal

6. When SO₂ is passed through acidified K₂Cr₂O₇ solution?

Green Cr₂(SO₄)₃ is formed

The solution turns blue

SO₂ is reduced

The solution is decolourised

7. Sulphur trioxide is an anhydride of

Sulphuric acid

None of these

Sulphurous acid

Hydro sulphuric

8. Which of the following fluorides does not exist?

AsF₅

NF₅

PF₅

SbF₅

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

Are both soluble in CS₂

Consist of the same kind of atoms

Can be oxidized by heating in air

Can be converted into one another

10. The structure of white phosphorus is

Trigonal planer

Pyramidal

Square planar

Tetrahedral

11. Phosphine is not obtained by the reaction when

Red P is heated with NaOH

Ca₂P₂ reacts with water

White P is heated with NaOH

PH₄I is boiled with water

12. Which of the following elements is most metallic?

13. Which one is colored among the following?

N₂O

SO₂

None of these

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

15. Dinitrogen pentaoxide has oxidation no of nitrogen

16. 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 ionic

More basic

17. Relatively pure sulphuric acid is manufactured by

Castner’s process

Haber’s process

Lead chamber process

Contact process

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

19. Ozone is not

An allotrope

A bent molecule

Paramagnetic

A powerful oxidizing agent

20. The brown gas formed when metal reduces HNO₃

NO₂

N₂O₅

N₂O

21. Ring test is used for confirmation of

None

Arsenates

Phosphates

Nitrates

22. Nitrogen is not present in

Urea

Amino acids

Proteins

Fatty acids

23. Oleum is

Castor oil

None of these

Fuming of H₂SO₄

Oil of vitriol

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

Phosphorous acid

None

Posh acid

Phosphine

25. Phosphorus pentoxide finds use as

An oxidizing agent

A reducing agent

A dehydrating agent

A bleaching agent

Page 2 of 3

26. At room temperature fluorine is

Shiny grayish

Red brown liquid

Greenish yellow gas

Pale yellow gas

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

28. BiCl₃ on hydrolysis forms a white precipitate of

Bismuth pent chloride

Bismuth oxychloride

Bismuth hydroxide

Bismuthio acid

29. Nitrogen and phosphorus forms compounds

Covalent as well as ionic frequently

Ionic

Covalent

Nitrogen forms covalent and phosphorus ionic

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

AsF₅

PF₅

BiF₅

SbF₅

31. Which catalyst is used in contact process?

Fe₂O₃

Ag₂O

SO₃

V₂O₅

32. White phosphorus is

P₅, a crown

A linear diatomic molecule

A mono atomic gas

P₄, a tetrahedral solid

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

NO₂

N₂

NH₃

34. Oxidation of NO in air produces

N₂O

N₂O₄

N₂O₃

35. One of the following is radioactive metal

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

Nitrogen

Phosphorus

Arsenic

Bismuth

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

3000 C

200 C

2000 C

300 C

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

Solids

Semisolid

Liquids

Semiliquid

39. Laughing gas is

N₂O₃

N₂O

NO₂

40. Chlorine is used for

All of these

Extraction of gold

Purification of water

As a bleaching agent

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

As acid

Reducing agent

Oxidizing agent

As a drying agent

42. Red P can be obtained from white P by

Dissolving it in CS₂ and crystallizing

Distilling it in an inert atmosphere

Heating it with a catalyst in an inert atmosphere

Melting it ad pouring the liquid into water

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

Phosphorus

Iodine

Nitrogen

Oxygen

44. Sodium hexametaphosphate is known as

Natalite

Nitrolim

Calgon

Permutite

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

H₂SO₄

HNO₂

HNO₃

HCl

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

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

Bismuth

Antimony

Nitron

Arsenic

48. Which gas has a pungent smell?

NO₂

N₂O

N₂O₃

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

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

C, N, Si, P

Si, P, C, N

P, Si, N, C

N, Si, C, P

Page 3 of 3

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

25 °C

0°C

250°C

450°C

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

53. All elements of VI A group are

Metalloids

None

Metals

Non-metals

54. Which one has no allotropes?

Phosphorus

Antimony

Nitrogen

Arsenic

55. Sulphuric acid is anhydride of

Sulphurous acid

Hydro Sulphuric acid

Sulphuric acid

Hyposulphuric acid

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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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