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 will have the maximum value of heat of hydration

Question # 2

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

Question # 3

Chief ore of aluminium is:

Question # 4

Which of the following elements is most metallic?

Question # 5

P2O5is heated with water to give

Question # 6

Al is the most element in earth crust:

Question # 7

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

Question # 8

Which of the following form normal oxide

Question # 9

The acid which has a peroxy linkage is

Question # 10

Which of the following element is most reactive

Question # 11

The metal with highest electrical resistance at room temperature is

Question # 12

Which of the following salt is used as purgative

Question # 13

Each of the following is true of white and red phosphours except that they

Question # 14

Which salt is used for preserving food

Question # 15

Which of the following salt is soluble in water

Question # 16

Solvay process is used in the manufacture of

Question # 17

Red P can be obtained form white P by

Question # 18

Pb has inert pair of electrons:

Question # 19

Phosphine is not obtained by the reaction when

Question # 20

Sodium hexametaphophate is known as

Question # 21

LiOH ______ soluble than NaOH

Question # 22

The oxidation number of each element of group ll-A is

Question # 23

______ is called milk of magnesia

Question # 24

Which of the following oxides is peroxide?

Question # 25

Which of the following sulphates is not soluble in water

Question # 26

Sodium should be stored in

Question # 27

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

Question # 28

Sometimes a yellow turbidity appears while passing H2S gas even in the absence of II group radicals. This is because

Question # 29

What is going to replace the petroleum?

Question # 30

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

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Alkaline earth metals are usually
A. Reducing agent
B. Oxidizing agent
C. Amphoteric
D. Acidic
2 Which is litharge or massicot?
A. PbO
B. Pb2O
C. Pb3O4
D. PbO2
3 Which of the following elements is not present abundantly in earth's crust?
A. Silicon
B. Aluminium
C. Sodium
D. Oxygen
4 Lithium reacts with air to form
A. Peroxide
B. Normal oxide
C. Superoxide
D. None of these
5 Which is used to remove air bubbles form metals?
A. B
B. Be
C. Mg
D. Al
6 Aluminium oxide is:
A. Acidic oxide
B. Basic oxide
C. Amphoteric oxided
D. None of these
7 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
8 The oxidation number of each element of group l-A is
A. 0
B. +1
C. +2
D. -1
9 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
10 Which one of the following equations represent the reaction that occurs when calcium nitrate is heated strongly

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