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

The alkaline earth elements have in their s-orbital

Question # 2

The number of unpaired electrons in the p-subshell of oxygen atom

Question # 3

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

Question # 4

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

Question # 5

Calcium carbide reacts with water to produce

Question # 6

Which of the following statement is not related to Solvay's process of Na2CO3

Question # 7

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

Question # 8

Basicity of orthoposphoric acid is

Question # 9

Electron affinity of sulphur is

Question # 10

The chemical formula of Trona is

Question # 11

The chemical formula of magnesite is

Question # 12

Sodium is never found free in nature because of its

Question # 13

Alkaline earth metals are usually

Question # 14

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

Question # 15

What is chrome yellow?

Question # 16

Which of the following salt is used as purgative

Question # 17

What causes nitrogen to be chemically inert?

Question # 18

Which shows maximum catenation property?

Question # 19

Sodium forms largely

Question # 20

Which colour is imparted by sodium

Question # 21

Tincal is a mineral of:

Question # 22

Which of the following has highest dipole moment?

Question # 23

All the elements of oxygen family are

Question # 24

Bond angle is minimum for

Question # 25

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

Question # 26

LiOH ______ soluble than NaOH

Question # 27

Which of the following are electropositive in nature

Question # 28

NaHCO3is commonly called

Question # 29

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

Question # 30

HNO2acts as an/a

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Down's cell is used to prepare
A. Sodium carbonate
B. Sodium bicarbonate
C. Sodium metal
D. Sodium hydroxide
2 Which salt is used for the treatment of hyperacidity in stomach
A. NaCl
B. KCl
C. NaHCO3
D. Na2CO3
3 Calcium carbide reacts with water to produce
A. Acetylene
B. Methane
C. Ethylene
D. Ethane
4 As a fixing agent in photography, sodium thisoulphate is used for
A. Dissolving out unreacted silver bromide
B. Converting silver
C. Reducing solubility of AgBr
D. Preventing overdeveloping and fogging
5 Gypsum is a common mineral of
A. Magnesium
B. Strontium
C. Calcium
D. Barium
6 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
7 When sulphur is boiled with Na2SO3solution, the compound formed is
A. Sodium sulphides
B. Sodiums sulphates
C. Sodium persulphate
D. Sodium thiosulphate
8 NaHCO3is commonly called
A. Soda ash
B. Baking soda
C. Washing soda
D. None of these
9 Which salt is used for preserving food
A. BaCl2
B. CaCl2
C. NaCl
D. Na2SO4
10 Which metal is used in the thermit process because of its activity?
A. Iron
B. Copper
C. Alumnium
D. Zinc

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