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

The formula of lime stone is

Question # 2

The electrolytic cell used for the production of metallic sodium is known as

Question # 3

Which colour is imparted by sodium

Question # 4

Which of the following sulphates is not soluble in water

Question # 5

Which is litharge or massicot?

Question # 6

Alkaline earth metals are usually

Question # 7

Which of the following salt is soluble in water

Question # 8

Which is used in navigational equipments?

Question # 9

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

Question # 10

What causes nitrogen to be chemically inert?

Question # 11

Which oxide of nitrogen is obtained on heating ammonium nitrate at 250° C?

Question # 12

Carbonates of alkali metals dissolves freely in water to form

Question # 13

Borax is hydrated:

Question # 14

When sulphur is boiled with Na2SO3solution, the compound formed is

Question # 15

Which salt is used for the treatment of hyperacidity in stomach

Question # 16

Orthophosphoric acid is

Question # 17

Sodium should be stored in

Question # 18

Boric acid cannot be used:

Question # 19

Dipole moment of CO molecule is:

Question # 20

The chemical formula of chile salt peter is

Question # 21

Which one of the following is not an alkali metal

Question # 22

Sodium is never found free in nature because of its

Question # 23

Which of the following elements is most metallic?

Question # 24

Some of the elements of a period show similar behavior with the elements of next group in next period this is called

Question # 25

Sulphuric acid has great affinity for water because

Question # 26

The chemical formula of gypsum is

Question # 27

Which of the following sulphates has the highest solubility in water

Question # 28

Marble is chemically

Question # 29

The element caesium bears resemblance with

Question # 30

What is chrome yellow?

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Calcium carbide reacts with water to produce
A. Acetylene
B. Methane
C. Ethylene
D. Ethane
2 The oxidation number of each element of group l-A is
A. 0
B. +1
C. +2
D. -1
3 What is going to replace the petroleum?
A. Silica
B. Silicates
C. Silicones
D. Silicon
4 Sodium is manufacture by the electrolysis of fused sodium chloride and not from an aqueous solution of sodium chloride because
A. Sodium chloride does not ionize in the water solution
B. Sodium chloride is not soluble in water
C. Sodium deposited at the cathode may react with water to form sodium hydroxide
D. Electricity does not pass through aqueous NaCl
5 The chemical formula of magnesite is
A. MgCl2
B. Mg(HCO3)2
C. MgCO3
D. None of these
6 Basicity of orthoposphoric acid is
A. 2
B. 3
C. 4
D. 5
7 When a colourless gas is passed through bromine water only decolourisation takes place the gas is
A. SO2
B. HBR
C. HCl
D. H2S
8 Where lime is not used
A. In refining or metals
B. In paper industry
C. In glass industry
D. In the preparation of NaOH
9 Which is used to remove air bubbles form metals?
A. B
B. Be
C. Mg
D. Al
10 The element caesium bears resemblance with
A. Ca
B. Cr
C. Rubidium
D. None of the above

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