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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. Which of the following has only oxidation state 3?

2. Oleum is

Fuming of H₂SO₄

Oil of vitriol

None of these

Castor oil

3. Oxidation of NO in air produces

N₂O₄

N₂O₃

N₂O

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

CO₂

O₂

H₂

N₂

5. Which gas has a pungent smell?

N₂O

N₂O₃

NO₂

6. Sulphuric acid is anhydride of

Sulphurous acid

Hyposulphuric acid

Sulphuric acid

Hydro Sulphuric acid

7. NO₂ o dissolution in water produce

HNO₂ and NO

HNO₃ and HNO₂

HNO₂

HNO₃

8. Dinitrogen pentaoxide has oxidation no of nitrogen

9. Sodium hexametaphosphate is known as

Permutite

Natalite

Calgon

Nitrolim

10. Phosphorus pentoxide finds use as

A dehydrating agent

An oxidizing agent

A bleaching agent

A reducing agent

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

0°C

250°C

450°C

25 °C

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

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

NH₃

NO₂

N₂

14. When SO₂ is passed through acidified K₂Cr₂O₇ solution?

SO₂ is reduced

The solution turns blue

Green Cr₂(SO₄)₃ is formed

The solution is decolourised

15. Nitrogen is not present in

Amino acids

Fatty acids

Urea

Proteins

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

PF₅

SbF₅

BiF₅

AsF₅

17. At room temperature fluorine is

Shiny grayish

Pale yellow gas

Red brown liquid

Greenish yellow gas

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

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

H₂SO₄

HNO₃

HNO₂

HCl

20. BiCl₃ on hydrolysis forms a white precipitate of

Bismuth hydroxide

Bismuth pent chloride

Bismuth oxychloride

Bismuthio acid

21. Nitrogen and phosphorus forms compounds

Covalent

Covalent as well as ionic frequently

Ionic

Nitrogen forms covalent and phosphorus ionic

22. Chlorine is used for

Purification of water

As a bleaching agent

Extraction of gold

All of these

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

300 C

2000 C

200 C

3000 C

24. One of the following is radioactive metal

25. Which of the following fluorides does not exist?

AsF₅

SbF₅

NF₅

PF₅

Page 2 of 3

26. Which of the following elements is most metallic?

27. Which one has no allotropes?

Antimony

Arsenic

Phosphorus

Nitrogen

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

Nitrogen

Phosphorus

Oxygen

Iodine

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

N, Si, C, P

C, N, Si, P

P, Si, N, C

Si, P, C, N

30. Ozone is not

An allotrope

A powerful oxidizing agent

A bent molecule

Paramagnetic

31. The brown gas formed when metal reduces HNO₃

N₂O

NO₂

N₂O₅

32. Ring test is used for confirmation of

Phosphates

Nitrates

None

Arsenates

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

34. Which one is colored among the following?

SO₂

None of these

N₂O

35. The structure of white phosphorus is

Tetrahedral

Pyramidal

Square planar

Trigonal planer

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

As acid

As a drying agent

Oxidizing agent

Reducing agent

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

Both are usually divalent

Both combine with metals to form O²¯ and S²¯

Both are paramagnetic

Both exhibit allotropic form

38. 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 ionic

More basic

Stronger reducing agents

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

Bismuth

Nitron

Arsenic

Antimony

40. Relative sulphuric acid is manufactured by

Haber’s process

Contact process

Lead chamber process

Castoner’s process

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

42. 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

Consist of the same kind of atoms

Can be oxidized by heating in air

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

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

Arsenic

Bismuth

Phosphorus

Nitrogen

45. Phosphine is not obtained by the reaction when

Ca₂P₂ reacts with water

White P is heated with NaOH

Red P is heated with NaOH

PH₄I is boiled with water

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

A transition element

A noble gas

A halogen

An alkali metal

47. Which catalyst is used in contact process?

Ag₂O

SO₃

V₂O₅

Fe₂O₃

48. Relatively pure sulphuric acid is manufactured by

Lead chamber process

Contact process

Castner’s process

Haber’s process

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

Solids

Semisolid

Semiliquid

Liquids

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

Posh acid

Phosphine

Phosphorous acid

None

Page 3 of 3

51. All elements of VI A group are

Metals

None

Non-metals

Metalloids

52. White phosphorus is

A mono atomic gas

P₄, a tetrahedral solid

P₅, a crown

A linear diatomic molecule

53. Laughing gas is

NO₂

N₂O

N₂O₃

54. Sulphur trioxide is an anhydride of

Hydro sulphuric

Sulphurous acid

None of these

Sulphuric acid

55. Red P can be obtained from white P by

Heating it with a catalyst in an inert atmosphere

Distilling it in an inert atmosphere

Dissolving it in CS₂ and crystallizing

Melting it ad pouring the liquid into water

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Malik TahirLast Updated: May 24, 2025

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MDCAT Chemistry Group VA and VIA Elements Test Online

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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Malik Tahir