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

Which electronic configuration corresponds to an element of Group ||Z-A of the periodic table?

Question # 2

NaHCO3is commonly called

Question # 3

Sodium should be stored in

Question # 4

Al is the most element in earth crust:

Question # 5

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

Question # 6

Which colour is imparted by sodium

Question # 7

Which property is not present in Al?

Question # 8

On alkali and alkaline earth metals down the group, there is decreasing trend in

Question # 9

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

Question # 10

Sulphuric acid has great affinity for water because

Question # 11

Which will have the maximum value of heat of hydration

Question # 12

Which shows maximum catenation property?

Question # 13

Aluminium oxide is:

Question # 14

Which of the following is acidic?

Question # 15

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

Question # 16

Which of the element is not alkali metal

Question # 17

NaHCO3is prepared by

Question # 18

Hybridized in oxygen is:

Question # 19

Which of the following sulphates is not soluble in water

Question # 20

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

Question # 21

Which has soapy touch?

Question # 22

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

Question # 23

Which of the following elements is most metallic?

Question # 24

The acid used in lead storage cells is

Question # 25

The metal with highest electrical resistance at room temperature is

Question # 26

Corrundam is ore of:

Question # 27

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

Question # 28

Which of the following compound is industrially prepared by the electrolysis of solution of NaCl

Question # 29

Which is not the form of silica?

Question # 30

As a fixing agent in photography, sodium thisoulphate is used for

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 The chemical formula of gypsum is
A. CaSO4. 5H2O
B. CaSO4. 4H2O
C. CaSO4. 2H2O
D. None of these
2 Dipole moment of CO molecule is:
A. 0.0
B. 1.112 D
C. 0.112 D
D. 2.112 D
3 In the earth crust sodium is
A. 2.50%
B. 2.30%
C. 2.40%
D. 3.50%
4 NaHCO3is commonly called
A. Soda ash
B. Baking soda
C. Washing soda
D. None of these
5 Which of the following are electropositive in nature
A. Alkali metals
B. Alkaline earth metals
C. Halogens
D. Alkali and alkaline earth metals
6 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
7 Aluminium oxide is:
A. Acidic oxide
B. Basic oxide
C. Amphoteric oxided
D. None of these
8 Which property is not present in Al?
A. Reacts with acid
B. Reacts with bases
C. Changes litmus paper
D. Changes methyle orange colour
9 Which of the element is not an alkaline earth metal
A. Beryllium
B. Strontium
C. Barium
D. Caesium
10 A compound used as eye wash:
A. Borax
B. Boric acid
C. Metabolic acid
D. Pyroboric acid

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