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

00:00
Question # 1

Dipole moment of CO molecule is:

Question # 2

Hybridized in oxygen is:

Question # 3

The formula of lime stone is

Question # 4

Al is the most element in earth crust:

Question # 5

Which metal of Group-II A of the periodic Table, will form the least ionic chloride

Question # 6

Which of the following is a tetrabasic acid?

Question # 7

Where lime is not used

Question # 8

Carbonates of alkali metals dissolves freely in water to form

Question # 9

The oxyacids of phosphorus in which phosphorus has the lowest oxidiation state is

Question # 10

Which of the following is not the reactions of lithium

Question # 11

Red P can be obtained form white P by

Question # 12

Which element has highest oxidation potential

Question # 13

Down's cell is used to prepare

Question # 14

Electron affinity of sulphur is

Question # 15

Chemical composition of colemnite is:

Question # 16

A compound used as eye wash:

Question # 17

Phosphine is not obtained by the reaction when

Question # 18

Which of the following salt is used as purgative

Question # 19

All the following decompose easily on heating to give oxygen except

Question # 20

Which shows maximum catenation property?

Question # 21

Which of the following is acidic?

Question # 22

Which salt is used for preserving food

Question # 23

Which of the following is the hardest metal among following

Question # 24

All the elements of oxygen family are

Question # 25

Basicity of orthoposphoric acid is

Question # 26

Sodium is never found free in nature because of its

Question # 27

Calcium carbide reacts with water to produce

Question # 28

The metal with highest electrical resistance at room temperature is

Question # 29

Permonosulphuric acid is known as

Question # 30

Which of the following fluorides does not exists?

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Commercial common salt becomes slight damp on storing because
A. Common salt is hygroscope
B. Common salt contains some impurity, which is hygroscopic
C. Salt in efflorescent
D. Salt is crystalline
2 Which one of the following is not an alkali metal
A. Francium
B. Caesium
C. Rubidium
D. Radium
3 Sulphuric acid has great affinity for water because
A. It hydrolyses the acid
B. It decomposes the acid
C. Acid forms hydrates with water
D. Acid decomposes water
4 Which of the following is a tetrabasic acid?
A. ORthophosphoric acid
B. Hyposphosphorus acid
C. Metaphosphoric
D. Pyrophosphoric acid
5 Where lime is not used
A. In refining or metals
B. In paper industry
C. In glass industry
D. In the preparation of NaOH
6 Plaster of pares is obtained by heating
A. Gypsum
B. Epsom
C. Lime stone
D. Dolomite
7 Which of the following phosphorus is most reactive?
A. Red phosphorus
B. White phosphorus
C. Scrlet phosphorus
D. Violet phosphorous
8 Heavy water is obtained by
A. Prolonged electrolysis of water
B. Dissolving heavy salt in water
C. Simple distillation of water
D. Removing impurities of calcium and magnesium form water
9 Permonosulphuric acid is known as
A. Marshall's acid
B. Carlo's acid
C. Sulphuric acid
D. None of these
10 Which oxide of nitrogen is obtained on heating ammonium nitrate at 250° C?
A. Nitric oxide
B. Nitrous oxide
C. Nitrogen dioxide
D. Dinitrogen tetraoxide

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