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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. Red P can be obtained from white P by

Dissolving it in CS₂ and crystallizing

Distilling it in an inert atmosphere

Melting it ad pouring the liquid into water

Heating it with a catalyst in an inert atmosphere

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

HCl

HNO₃

H₂SO₄

HNO₂

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

A transition element

An alkali metal

A halogen

A noble gas

4. The brown gas formed when metal reduces HNO₃

N₂O

NO₂

N₂O₅

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

PF₅

SbF₅

AsF₅

BiF₅

6. Which gas has a pungent smell?

N₂O₃

NO₂

N₂O

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

As a drying agent

As acid

Reducing agent

Oxidizing agent

8. Dinitrogen pentaoxide has oxidation no of nitrogen

9. 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 volatile

More basic

Stronger reducing agents

10. Which of the following fluorides does not exist?

PF₅

SbF₅

AsF₅

NF₅

11. Which one has no allotropes?

Nitrogen

Arsenic

Phosphorus

Antimony

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

200 C

300 C

2000 C

3000 C

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

C, N, Si, P

N, Si, C, P

P, Si, N, C

Si, P, C, N

14. At room temperature fluorine is

Greenish yellow gas

Shiny grayish

Pale yellow gas

Red brown liquid

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

16. Chlorine is used for

As a bleaching agent

All of these

Purification of water

Extraction of gold

17. When SO₂ is passed through acidified K₂Cr₂O₇ solution?

Green Cr₂(SO₄)₃ is formed

SO₂ is reduced

The solution is decolourised

The solution turns blue

18. Oxidation of NO in air produces

N₂O

N₂O₃

N₂O₄

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

0°C

25 °C

450°C

250°C

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

H₂

N₂

CO₂

O₂

21. NO₂ o dissolution in water produce

HNO₃

HNO₃ and HNO₂

HNO₂ and NO

HNO₂

22. Phosphorus pentoxide finds use as

A dehydrating agent

An oxidizing agent

A reducing agent

A bleaching agent

23. BiCl₃ on hydrolysis forms a white precipitate of

Bismuth hydroxide

Bismuth oxychloride

Bismuthio acid

Bismuth pent chloride

24. The structure of white phosphorus is

Pyramidal

Square planar

Tetrahedral

Trigonal planer

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

Page 2 of 3

26. Sulphuric acid is anhydride of

Sulphuric acid

Hydro Sulphuric acid

Hyposulphuric acid

Sulphurous acid

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

Oxygen

Nitrogen

Phosphorus

Iodine

28. Which catalyst is used in contact process?

Fe₂O₃

V₂O₅

Ag₂O

SO₃

29. Sulphur trioxide is an anhydride of

None of these

Sulphuric acid

Sulphurous acid

Hydro sulphuric

30. All elements of VI A group are

Metalloids

Metals

None

Non-metals

31. White phosphorus is

P₅, a crown

A mono atomic gas

P₄, a tetrahedral solid

A linear diatomic molecule

32. Oleum is

Oil of vitriol

Castor oil

None of these

Fuming of H₂SO₄

33. Nitrogen is not present in

Proteins

Amino acids

Urea

Fatty acids

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

Are both soluble in CS₂

Can be oxidized by heating in air

Consist of the same kind of atoms

Can be converted into one another

35. One of the following is radioactive metal

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

Arsenic

Bismuth

Phosphorus

Nitrogen

37. Relatively pure sulphuric acid is manufactured by

Contact process

Haber’s process

Lead chamber process

Castner’s process

38. Nitrogen and phosphorus forms compounds

Covalent

Nitrogen forms covalent and phosphorus ionic

Covalent as well as ionic frequently

Ionic

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

40. Which one is colored among the following?

None of these

N₂O

SO₂

41. Phosphine is not obtained by the reaction when

White P is heated with NaOH

PH₄I is boiled with water

Red P is heated with NaOH

Ca₂P₂ reacts with water

42. Ring test is used for confirmation of

Phosphates

Arsenates

Nitrates

None

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

Antimony

Bismuth

Arsenic

Nitron

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

Posh acid

Phosphorous acid

None

Phosphine

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

Solids

Semiliquid

Liquids

Semisolid

46. Laughing gas is

N₂O₃

N₂O

NO₂

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

Both are usually divalent

Both exhibit allotropic form

Both combine with metals to form O²¯ and S²¯

Both are paramagnetic

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

NH₃

N₂

NO₂

49. Ozone is not

A powerful oxidizing agent

Paramagnetic

An allotrope

A bent molecule

50. Relative sulphuric acid is manufactured by

Contact process

Haber’s process

Castoner’s process

Lead chamber process

Page 3 of 3

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

52. Sodium hexametaphosphate is known as

Permutite

Nitrolim

Natalite

Calgon

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

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

55. Which of the following elements is most metallic?

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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

Chemistry

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