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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.
Test Helpful For:	ECAT Entry Test Chemistry Online Test Interview Questions about Chemisttry All Universities Entrance Test Recruitments Tests

ECAT Chemistry Group VA and VIA Elements Test

Page 1 of 3

Chemistry

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

2. Which of the following elements is most metallic?

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

HNO₃

HCl

H₂SO₄

HNO₂

4. Which catalyst is used in contact process?

Fe₂O₃

SO₃

Ag₂O

V₂O₅

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

6. Ring test is used for confirmation of

Nitrates

None

Phosphates

Arsenates

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

Reducing agent

Oxidizing agent

As a drying agent

As acid

8. Chlorine is used for

Extraction of gold

All of these

As a bleaching agent

Purification of water

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

450°C

250°C

0°C

25 °C

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

Can be converted into one another

Consist of the same kind of atoms

Are both soluble in CS₂

Can be oxidized by heating in air

11. Which gas has a pungent smell?

N₂O

NO₂

N₂O₃

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

CO₂

N₂

H₂

O₂

13. Which of the following fluorides does not exist?

PF₅

AsF₅

SbF₅

NF₅

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

NO₂

N₂

NH₃

15. Nitrogen is not present in

Amino acids

Fatty acids

Proteins

Urea

16. When SO₂ is passed through acidified K₂Cr₂O₇ solution?

The solution is decolourised

SO₂ is reduced

The solution turns blue

Green Cr₂(SO₄)₃ is formed

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

SbF₅

AsF₅

BiF₅

PF₅

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

C, N, Si, P

N, Si, C, P

Si, P, C, N

P, Si, N, C

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

Phosphorus

Nitrogen

Arsenic

Bismuth

20. Which one has no allotropes?

Nitrogen

Antimony

Phosphorus

Arsenic

21. All elements of VI A group are

Non-metals

Metals

Metalloids

None

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

Antimony

Bismuth

Nitron

Arsenic

23. At room temperature fluorine is

Shiny grayish

Pale yellow gas

Greenish yellow gas

Red brown liquid

24. Sodium hexametaphosphate is known as

Permutite

Calgon

Nitrolim

Natalite

25. Which one is colored among the following?

None of these

SO₂

N₂O

Page 2 of 3

26. One of the following is radioactive metal

27. White phosphorus is

A linear diatomic molecule

P₄, a tetrahedral solid

A mono atomic gas

P₅, a crown

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

29. The structure of white phosphorus is

Square planar

Pyramidal

Trigonal planer

Tetrahedral

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

None

Posh acid

Phosphorous acid

Phosphine

31. Dinitrogen pentaoxide has oxidation no of nitrogen

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

A noble gas

A transition element

A halogen

An alkali metal

33. NO₂ o dissolution in water produce

HNO₂ and NO

HNO₃

HNO₂

HNO₃ and HNO₂

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

35. Phosphine is not obtained by the reaction when

Ca₂P₂ reacts with water

PH₄I is boiled with water

White P is heated with NaOH

Red P is heated with NaOH

36. Relative sulphuric acid is manufactured by

Lead chamber process

Haber’s process

Castoner’s process

Contact process

37. Sulphuric acid is anhydride of

Sulphurous acid

Hydro Sulphuric acid

Sulphuric acid

Hyposulphuric acid

38. The brown gas formed when metal reduces HNO₃

NO₂

N₂O₅

N₂O

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

300 C

200 C

2000 C

3000 C

40. Nitrogen and phosphorus forms compounds

Nitrogen forms covalent and phosphorus ionic

Covalent as well as ionic frequently

Covalent

Ionic

41. Laughing gas is

N₂O

NO₂

N₂O₃

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

43. Phosphorus pentoxide finds use as

A bleaching agent

A reducing agent

An oxidizing agent

A dehydrating agent

44. BiCl₃ on hydrolysis forms a white precipitate of

Bismuth oxychloride

Bismuth hydroxide

Bismuthio acid

Bismuth pent chloride

45. 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

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

Solids

Liquids

Semisolid

Semiliquid

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

Phosphorus

Nitrogen

Oxygen

Iodine

48. Relatively pure sulphuric acid is manufactured by

Contact process

Haber’s process

Castner’s process

Lead chamber process

49. Red P can be obtained from white P by

Melting it ad pouring the liquid into water

Distilling it in an inert atmosphere

Dissolving it in CS₂ and crystallizing

Heating it with a catalyst in an inert atmosphere

50. Ozone is not

An allotrope

Paramagnetic

A powerful oxidizing agent

A bent molecule

Page 3 of 3

51. 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

52. Oxidation of NO in air produces

N₂O₄

N₂O₃

N₂O

53. Oleum is

None of these

Castor oil

Oil of vitriol

Fuming of H₂SO₄

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

55. Sulphur trioxide is an anhydride of

Hydro sulphuric

Sulphuric acid

Sulphurous acid

None of these

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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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