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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.
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MDCAT Chemistry Group VA and VIA Elements Test

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Page 1 of 3

Chemistry

1. At room temperature fluorine is

Pale yellow gas

Greenish yellow gas

Shiny grayish

Red brown liquid

2. Which one is colored among the following?

None of these

SO₂

N₂O

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

O₂

N₂

H₂

CO₂

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

Nitrogen

Bismuth

Phosphorus

Arsenic

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

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

Reducing agent

As a drying agent

Oxidizing agent

As acid

7. The structure of white phosphorus is

Trigonal planer

Tetrahedral

Pyramidal

Square planar

8. Ozone is not

A bent molecule

An allotrope

A powerful oxidizing agent

Paramagnetic

9. Sulphur trioxide is an anhydride of

Hydro sulphuric

Sulphurous acid

None of these

Sulphuric acid

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

H₂SO₄

HNO₃

HNO₂

HCl

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

N, Si, C, P

Si, P, C, N

C, N, Si, P

P, Si, N, C

12. Nitrogen and phosphorus forms compounds

Covalent

Nitrogen forms covalent and phosphorus ionic

Ionic

Covalent as well as ionic frequently

13. When SO₂ is passed through acidified K₂Cr₂O₇ solution?

The solution is decolourised

Green Cr₂(SO₄)₃ is formed

SO₂ is reduced

The solution turns blue

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

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

16. White phosphorus is

A mono atomic gas

P₅, a crown

P₄, a tetrahedral solid

A linear diatomic molecule

17. Red P can be obtained from white P by

Melting it ad pouring the liquid into water

Heating it with a catalyst in an inert atmosphere

Distilling it in an inert atmosphere

Dissolving it in CS₂ and crystallizing

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

Arsenic

Bismuth

Nitron

Antimony

19. Which gas has a pungent smell?

NO₂

N₂O

N₂O₃

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

BiF₅

PF₅

SbF₅

AsF₅

21. Chlorine is used for

All of these

As a bleaching agent

Extraction of gold

Purification of water

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

NH₃

NO₂

N₂

23. Laughing gas is

N₂O₃

N₂O

NO₂

24. Relatively pure sulphuric acid is manufactured by

Castner’s process

Lead chamber process

Haber’s process

Contact process

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

Oxygen

Iodine

Nitrogen

Phosphorus

Page 2 of 3

26. One of the following is radioactive metal

27. Which one has no allotropes?

Phosphorus

Arsenic

Nitrogen

Antimony

28. Relative sulphuric acid is manufactured by

Contact process

Haber’s process

Castoner’s process

Lead chamber process

29. Phosphorus pentoxide finds use as

A reducing agent

A bleaching agent

An oxidizing agent

A dehydrating agent

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

Phosphine

None

Posh acid

Phosphorous acid

31. Sulphuric acid is anhydride of

Sulphurous acid

Sulphuric acid

Hydro Sulphuric acid

Hyposulphuric acid

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

Semisolid

Liquids

Solids

Semiliquid

33. Which catalyst is used in contact process?

Fe₂O₃

SO₃

Ag₂O

V₂O₅

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

0°C

25 °C

250°C

450°C

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

A transition element

A halogen

A noble gas

An alkali metal

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

37. 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 ionic

More basic

More volatile

Stronger reducing agents

38. Oleum is

None of these

Castor oil

Fuming of H₂SO₄

Oil of vitriol

39. All elements of VI A group are

Metalloids

Metals

None

Non-metals

40. Ring test is used for confirmation of

Nitrates

None

Arsenates

Phosphates

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

300 C

3000 C

200 C

2000 C

42. Dinitrogen pentaoxide has oxidation no of nitrogen

43. Which of the following elements is most metallic?

44. NO₂ o dissolution in water produce

HNO₃ and HNO₂

HNO₂ and NO

HNO₃

HNO₂

45. BiCl₃ on hydrolysis forms a white precipitate of

Bismuth hydroxide

Bismuthio acid

Bismuth oxychloride

Bismuth pent chloride

46. Phosphine is not obtained by the reaction when

PH₄I is boiled with water

Ca₂P₂ reacts with water

Red P is heated with NaOH

White P is heated with NaOH

47. Oxidation of NO in air produces

N₂O₃

N₂O

N₂O₄

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

Can be converted into one another

Are both soluble in CS₂

Can be oxidized by heating in air

Consist of the same kind of atoms

49. Which of the following fluorides does not exist?

AsF₅

PF₅

NF₅

SbF₅

50. Nitrogen is not present in

Fatty acids

Proteins

Urea

Amino acids

Page 3 of 3

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

52. Sodium hexametaphosphate is known as

Natalite

Permutite

Calgon

Nitrolim

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

54. The brown gas formed when metal reduces HNO₃

NO₂

N₂O

N₂O₅

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

Both are paramagnetic

Both exhibit allotropic form

Both are usually divalent

Both combine with metals to form O²¯ and S²¯

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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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