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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. Which of the following fluorides does not exist?

SbF₅

PF₅

NF₅

AsF₅

2. Nitrogen and phosphorus forms compounds

Covalent

Nitrogen forms covalent and phosphorus ionic

Ionic

Covalent as well as ionic frequently

3. When SO₂ is passed through acidified K₂Cr₂O₇ solution?

Green Cr₂(SO₄)₃ is formed

The solution turns blue

SO₂ is reduced

The solution is decolourised

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

As acid

Oxidizing agent

Reducing agent

As a drying agent

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

Si, P, C, N

C, N, Si, P

N, Si, C, P

P, Si, N, C

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

A halogen

A transition element

A noble gas

An alkali metal

7. Chlorine is used for

Extraction of gold

Purification of water

All of these

As a bleaching agent

8. BiCl₃ on hydrolysis forms a white precipitate of

Bismuth oxychloride

Bismuth hydroxide

Bismuthio acid

Bismuth pent chloride

9. Sulphuric acid is anhydride of

Sulphurous acid

Sulphuric acid

Hyposulphuric acid

Hydro Sulphuric acid

10. White phosphorus is

A mono atomic gas

P₄, a tetrahedral solid

A linear diatomic molecule

P₅, a crown

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

12. 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

13. The structure of white phosphorus is

Tetrahedral

Pyramidal

Square planar

Trigonal planer

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

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

O₂

N₂

CO₂

H₂

16. Oxidation of NO in air produces

N₂O₄

N₂O

N₂O₃

17. NO₂ o dissolution in water produce

HNO₂

HNO₂ and NO

HNO₃ and HNO₂

HNO₃

18. Which of the following elements is most metallic?

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

Bismuth

Nitrogen

Arsenic

Phosphorus

20. The brown gas formed when metal reduces HNO₃

N₂O₅

N₂O

NO₂

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

25 °C

250°C

0°C

450°C

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

NH₃

N₂

NO₂

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

HNO₃

HNO₂

HCl

H₂SO₄

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

25. Ring test is used for confirmation of

None

Nitrates

Arsenates

Phosphates

Page 2 of 3

26. Relatively pure sulphuric acid is manufactured by

Contact process

Lead chamber process

Haber’s process

Castner’s process

27. All elements of VI A group are

Metals

None

Metalloids

Non-metals

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

200 C

3000 C

300 C

2000 C

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

30. Phosphorus pentoxide finds use as

A reducing agent

An oxidizing agent

A dehydrating agent

A bleaching agent

31. One of the following is radioactive metal

32. Nitrogen is not present in

Urea

Amino acids

Fatty acids

Proteins

33. Which one is colored among the following?

None of these

N₂O

SO₂

34. Phosphine is not obtained by the reaction when

Red P is heated with NaOH

PH₄I is boiled with water

Ca₂P₂ reacts with water

White P is heated with NaOH

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

AsF₅

BiF₅

SbF₅

PF₅

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

37. At room temperature fluorine is

Shiny grayish

Red brown liquid

Pale yellow gas

Greenish yellow gas

38. Sulphur trioxide is an anhydride of

None of these

Sulphurous acid

Sulphuric acid

Hydro sulphuric

39. Which catalyst is used in contact process?

SO₃

Ag₂O

Fe₂O₃

V₂O₅

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

Arsenic

Nitron

Bismuth

Antimony

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

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

Iodine

Phosphorus

Oxygen

Nitrogen

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

Posh acid

Phosphine

None

Phosphorous acid

44. Oleum is

Oil of vitriol

None of these

Fuming of H₂SO₄

Castor oil

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

Semisolid

Solids

Liquids

Semiliquid

46. Relative sulphuric acid is manufactured by

Contact process

Lead chamber process

Castoner’s process

Haber’s process

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

Consist of the same kind of atoms

Are both soluble in CS₂

Can be converted into one another

Can be oxidized by heating in air

48. Which gas has a pungent smell?

N₂O

N₂O₃

NO₂

49. Which one has no allotropes?

Nitrogen

Arsenic

Antimony

Phosphorus

50. Ozone is not

A powerful oxidizing agent

Paramagnetic

An allotrope

A bent molecule

Page 3 of 3

51. Sodium hexametaphosphate is known as

Calgon

Nitrolim

Permutite

Natalite

52. Laughing gas is

NO₂

N₂O

N₂O₃

53. Dinitrogen pentaoxide has oxidation no of nitrogen

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

Both combine with metals to form O²¯ and S²¯

Both are paramagnetic

Both exhibit allotropic form

Both are usually divalent

55. 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

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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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