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

Potassium superoxide has a use in breathing equipment in space crafts. The balanced equation for the reaction is

Question # 2

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

Question # 3

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

Question # 4

Gypsum is a common mineral of

Question # 5

Hybridized in oxygen is:

Question # 6

The chemical formula of magnesite is

Question # 7

What is chrome yellow?

Question # 8

Crystalline form of sulphur stable at room temperature is

Question # 9

P2O5is heated with water to give

Question # 10

Lithium reacts with air to form

Question # 11

Electron affinity of sulphur is

Question # 12

Lime, calcium oxide, is used in agriculture for

Question # 13

NaHCO3is commonly called

Question # 14

Carbonates of alkali metals dissolves freely in water to form

Question # 15

Which one of the following pentafluorides cannot be formed?

Question # 16

Which will have the maximum value of heat of hydration

Question # 17

Silicon atom is hybridized:

Question # 18

LiOH ______ soluble than NaOH

Question # 19

Which carbonate of alkali metals is insoluble in water

Question # 20

Which is not the form of silica?

Question # 21

The most acidic of the following compounds is

Question # 22

Alkaline earth metals are usually

Question # 23

Phosphide ion has the electronic structure similar to that of

Question # 24

Aluminium oxide is:

Question # 25

Which element has highest oxidation potential

Question # 26

Which element among the following belongs to Group IV-A of the periodic table?

Question # 27

Heavy water is obtained by

Question # 28

______ reacts with alkalis to give hydrogen

Question # 29

Which of the following oxides is peroxide?

Question # 30

Which of the following is acidic?

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Which carbonate of alkali metals is insoluble in water
A. Na2CO3
B. K2CO3
C. Li2CO3
D. Cs2CO3
2 Which metal is used in the thermit process because of its activity?
A. Iron
B. Copper
C. Alumnium
D. Zinc
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 What is the formula of asbestos?
A. CaMg3(SiO3)4
B. CaSiO3
C. Na2SiO3
D. Mg3H2(SiO3)4
5 Which of the following statement is not related to Solvay's process of Na2CO3
A. Cheap materials
B. Pure product
C. Continuous process
D. Harmful by-products
6 Which element forms an iron with charge 3+?
A. Berylium
B. Aluminium
C. Carbon
D. Silicon
7 Which one of the following pentafluorides cannot be formed?
A. PF5
B. AsF5
C. SbF5
D. BiF5
8 LiOH ______ soluble than NaOH
A. More soluble
B. Less soluble
C. Equally soluble
D. None
9 Sodium is never found free in nature because of its
A. Chemical reactivity
B. Small ionic size
C. Small atomic volume
D. None of these
10 Which salt is used for preserving food
A. BaCl2
B. CaCl2
C. NaCl
D. Na2SO4

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