ECAT Pre Engineering Chemistry Chapter 14 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 14 Group IIIA & IVA Elements

Try The MCQ's Test For ECAT Chemistry Chapter 14 Group IIIA & IVA Elements

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ECAT Chemistry Chapter 14 Group IIIA & IVA Elements

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Question # 1

BiCl3on hydrolysis forms a white precipitate of

Question # 2

Dipole moment of CO molecule is:

Question # 3

Which of the following are electropositive in nature

Question # 4

Which is used to remove air bubbles form metals?

Question # 5

The chemical formula of Epson salt is

Question # 6

The metal with highest electrical resistance at room temperature is

Question # 7

Phosphide ion has the electronic structure similar to that of

Question # 8

Which metal is used in the thermit process because of its activity?

Question # 9

Chemical composition of colemnite is:

Question # 10

Polyanion formation is maximum in

Question # 11

Which shows maximum catenation property?

Question # 12

Which one of the following equations represent the reaction that occurs when calcium nitrate is heated strongly

Question # 13

Which of the following is the hardest metal among following

Question # 14

Which of the following is lighter

Question # 15

Aluminium oxide is:

Question # 16

Boric acid cannot be used:

Question # 17

When a colourless gas is passed through bromine water only decolourisation takes place the gas is

Question # 18

The alkaline earth elements have in their s-orbital

Question # 19

Pb has inert pair of electrons:

Question # 20

Which of the following sulphates has the highest solubility in water

Question # 21

Which is not the form of silica?

Question # 22

Borax is a common mineral of alkali metal sodium. Its formula is

Question # 23

Each of the following is true of white and red phosphours except that they

Question # 24

Bond angle is minimum for

Question # 25

Which of the following has highest dipole moment?

Question # 26

Sulphuric acid has great affinity for water because

Question # 27

LiOH ______ soluble than NaOH

Question # 28

When ammonia is heated with cupric oxide, a molecule of ammonia will

Question # 29

What is the formula of asbestos?

Question # 30

______ is used in breathing equipments for mountaineers and in space craft

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Borax is hydrated:
A. Penta
B. Deca
C. Hepta
D. Octa
2 Down's cell is used to prepare
A. Sodium carbonate
B. Sodium bicarbonate
C. Sodium metal
D. Sodium hydroxide
3 Which of the following sulphates is not soluble in water
A. Sodium sulphate
B. Potassium sulphate
C. Zinc sulphate
D. Barium sulphate
4 All the elements of oxygen family are
A. Non metals
B. Metalloids
C. Radioactive
D. Polymorphic
5 Borax is a common mineral of alkali metal sodium. Its formula is
A. Na2B4O7
B. Na2,B4O7. 10H2O
C. Na2B3O6. 10H2O
D. Na2B4O7- 5H2O
6 Which one of the following equations represent the reaction that occurs when calcium nitrate is heated strongly
7 Orthophosphoric acid is
A. Monobasic
B. Dibasic
C. Tribasic
D. Tetrabasic
8 Which of the following compounds is explosive in nature?
A. Phosphorus trichloride
B. Nitrogen trichloride
C. Hyponitrous acid
D. Nitrosyl chloride
9 What is chrome yellow?
A. Pbo
B. Pb2O
C. PbCrO4
D. Pb3O4
10 Which of the following is formed by the action of water on sodium peroxide?
A. H2
B. N2
C. O2
D. CO2

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