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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. Which one of the following pentafluorides cannot be formed?

SbF₅

AsF₅

BiF₅

PF₅

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

Phosphorus

Oxygen

Iodine

Nitrogen

3. Which catalyst is used in contact process?

SO₃

Ag₂O

V₂O₅

Fe₂O₃

4. Which of the following fluorides does not exist?

NF₅

PF₅

SbF₅

AsF₅

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

6. 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

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

Bismuth

Phosphorus

Arsenic

Nitrogen

8. Which gas has a pungent smell?

N₂O₃

N₂O

NO₂

9. The brown gas formed when metal reduces HNO₃

N₂O

N₂O₅

NO₂

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

As acid

Oxidizing agent

As a drying agent

Reducing agent

11. Laughing gas is

NO₂

N₂O₃

N₂O

12. At room temperature fluorine is

Shiny grayish

Red brown liquid

Greenish yellow gas

Pale yellow gas

13. Nitrogen is not present in

Urea

Fatty acids

Amino acids

Proteins

14. BiCl₃ on hydrolysis forms a white precipitate of

Bismuth pent chloride

Bismuthio acid

Bismuth hydroxide

Bismuth oxychloride

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

0°C

25 °C

450°C

250°C

16. Ozone is not

Paramagnetic

A bent molecule

A powerful oxidizing agent

An allotrope

17. Chlorine is used for

All of these

As a bleaching agent

Purification of water

Extraction of gold

18. One of the following is radioactive metal

19. Red P can be obtained from white P by

Distilling it in an inert atmosphere

Melting it ad pouring the liquid into water

Heating it with a catalyst in an inert atmosphere

Dissolving it in CS₂ and crystallizing

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

Posh acid

Phosphorous acid

None

Phosphine

21. 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¯

22. Which of the following elements is most metallic?

23. White phosphorus is

P₄, a tetrahedral solid

A mono atomic gas

A linear diatomic molecule

P₅, a crown

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

Nitron

Bismuth

Antimony

Arsenic

25. Which one is colored among the following?

SO₂

None of these

N₂O

Page 2 of 3

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

A noble gas

A halogen

A transition element

An alkali metal

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

28. Dinitrogen pentaoxide has oxidation no of nitrogen

29. Oxidation of NO in air produces

N₂O₄

N₂O₃

N₂O

30. Phosphorus pentoxide finds use as

A dehydrating agent

An oxidizing agent

A bleaching agent

A reducing agent

31. Sulphuric acid is anhydride of

Hyposulphuric acid

Sulphurous acid

Hydro Sulphuric acid

Sulphuric acid

32. 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 basic

Stronger reducing agents

More volatile

More ionic

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

34. Relatively pure sulphuric acid is manufactured by

Contact process

Castner’s process

Haber’s process

Lead chamber process

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

HCl

HNO₂

HNO₃

H₂SO₄

36. Nitrogen and phosphorus forms compounds

Covalent as well as ionic frequently

Covalent

Ionic

Nitrogen forms covalent and phosphorus ionic

37. The structure of white phosphorus is

Pyramidal

Square planar

Trigonal planer

Tetrahedral

38. Oleum is

Oil of vitriol

Castor oil

Fuming of H₂SO₄

None of these

39. Phosphine is not obtained by the reaction when

Ca₂P₂ reacts with water

PH₄I is boiled with water

Red P is heated with NaOH

White P is heated with NaOH

40. Relative sulphuric acid is manufactured by

Lead chamber process

Contact process

Haber’s process

Castoner’s process

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

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

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

H₂

N₂

CO₂

O₂

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

Solids

Liquids

Semisolid

Semiliquid

45. 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

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

N₂

NH₃

NO₂

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

3000 C

2000 C

200 C

300 C

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

49. Sodium hexametaphosphate is known as

Natalite

Calgon

Nitrolim

Permutite

50. All elements of VI A group are

Metalloids

Non-metals

Metals

None

Page 3 of 3

51. Which one has no allotropes?

Arsenic

Nitrogen

Phosphorus

Antimony

52. When SO₂ is passed through acidified K₂Cr₂O₇ solution?

Green Cr₂(SO₄)₃ is formed

SO₂ is reduced

The solution turns blue

The solution is decolourised

53. Ring test is used for confirmation of

None

Arsenates

Nitrates

Phosphates

54. Sulphur trioxide is an anhydride of

Hydro sulphuric

Sulphuric acid

Sulphurous acid

None of these

55. NO₂ o dissolution in water produce

HNO₃ and HNO₂

HNO₃

HNO₂

HNO₂ and NO

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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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