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ECAT Chemistry Group VA and VIA Elements Test Online

Maan AliLast Updated: April 19, 2025

Chemistry Group VA and VIA Elements MCQS Online Test

ECAT 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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ECAT Chemistry Group VA and VIA Elements Test

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Page 1 of 3

Chemistry

1. Relative sulphuric acid is manufactured by

Lead chamber process

Haber’s process

Contact process

Castoner’s process

2. BiCl₃ on hydrolysis forms a white precipitate of

Bismuth oxychloride

Bismuthio acid

Bismuth pent chloride

Bismuth hydroxide

3. All elements of VI A group are

Metalloids

None

Non-metals

Metals

4. Phosphine is not obtained by the reaction when

PH₄I is boiled with water

Red P is heated with NaOH

White P is heated with NaOH

Ca₂P₂ reacts with water

5. Laughing gas is

N₂O

NO₂

N₂O₃

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

HNO₃

HNO₂

HCl

H₂SO₄

7. Nitrogen and phosphorus forms compounds

Ionic

Covalent as well as ionic frequently

Nitrogen forms covalent and phosphorus ionic

Covalent

8. Relatively pure sulphuric acid is manufactured by

Contact process

Haber’s process

Castner’s process

Lead chamber process

9. Ozone is not

A powerful oxidizing agent

An allotrope

Paramagnetic

A bent molecule

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

Bismuth

Arsenic

Phosphorus

Nitrogen

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

12. Sulphuric acid is anhydride of

Hyposulphuric acid

Sulphuric acid

Hydro Sulphuric acid

Sulphurous acid

13. Which of the following fluorides does not exist?

NF₅

AsF₅

SbF₅

PF₅

14. Ring test is used for confirmation of

Arsenates

None

Phosphates

Nitrates

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

16. Which one has no allotropes?

Antimony

Arsenic

Phosphorus

Nitrogen

17. Which one is colored among the following?

N₂O

SO₂

None of these

18. The brown gas formed when metal reduces HNO₃

N₂O₅

NO₂

N₂O

19. Oxidation of NO in air produces

N₂O₃

N₂O

N₂O₄

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

Liquids

Semisolid

Solids

Semiliquid

21. Nitrogen is not present in

Amino acids

Proteins

Fatty acids

Urea

22. Which gas has a pungent smell?

N₂O₃

N₂O

NO₂

23. Sodium hexametaphosphate is known as

Permutite

Nitrolim

Calgon

Natalite

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

Phosphine

None

Phosphorous acid

Posh acid

25. Dinitrogen pentaoxide has oxidation no of nitrogen

Page 2 of 3

26. One of the following is radioactive metal

27. Phosphorus pentoxide finds use as

An oxidizing agent

A bleaching agent

A dehydrating agent

A reducing agent

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

Both exhibit allotropic form

Both combine with metals to form O²¯ and S²¯

Both are usually divalent

Both are paramagnetic

29. The structure of white phosphorus is

Trigonal planer

Tetrahedral

Square planar

Pyramidal

30. Chlorine is used for

Extraction of gold

All of these

As a bleaching agent

Purification of water

31. White phosphorus is

A linear diatomic molecule

P₅, a crown

P₄, a tetrahedral solid

A mono atomic gas

32. NO₂ o dissolution in water produce

HNO₃ and HNO₂

HNO₂

HNO₂ and NO

HNO₃

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

C, N, Si, P

Si, P, C, N

N, Si, C, P

P, Si, N, C

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

AsF₅

PF₅

BiF₅

SbF₅

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

Are both soluble in CS₂

Can be converted into one another

Can be oxidized by heating in air

Consist of the same kind of atoms

36. When SO₂ is passed through acidified K₂Cr₂O₇ solution?

Green Cr₂(SO₄)₃ is formed

The solution is decolourised

The solution turns blue

SO₂ is reduced

37. Oleum is

Fuming of H₂SO₄

None of these

Castor oil

Oil of vitriol

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

39. 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

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

41. Which catalyst is used in contact process?

Fe₂O₃

Ag₂O

V₂O₅

SO₃

42. 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

Stronger reducing agents

More basic

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

3000 C

300 C

2000 C

200 C

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

25 °C

250°C

450°C

0°C

45. Sulphur trioxide is an anhydride of

None of these

Sulphurous acid

Hydro sulphuric

Sulphuric acid

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

Nitrogen

Oxygen

Phosphorus

Iodine

47. At room temperature fluorine is

Shiny grayish

Greenish yellow gas

Pale yellow gas

Red brown liquid

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

A noble gas

A halogen

An alkali metal

A transition element

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

NO₂

N₂

NH₃

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

Page 3 of 3

51. Which of the following elements is most metallic?

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

Nitron

Bismuth

Antimony

Arsenic

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

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

Reducing agent

Oxidizing agent

As acid

As a drying agent

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

CO₂

N₂

H₂

O₂

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Maan AliLast Updated: April 19, 2025

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ECAT Chemistry Group VA and VIA Elements Test Online

Chemistry Group VA and VIA Elements MCQS Online Test

ECAT Chemistry Group VA and VIA Elements Chapter Online Test

ECAT Chemistry Group VA and VIA Elements Test

Chemistry

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Chemistry Group VA and VIA Elements MCQS Online Test

ECAT Chemistry Group VA and VIA Elements Chapter Online Test

ECAT Chemistry Group VA and VIA Elements Test

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