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

P2O5is heated with water to give

Question # 2

Where lime is not used

Question # 3

Which will have the maximum value of heat of hydration

Question # 4

Pb has inert pair of electrons:

Question # 5

In the earth crust sodium is

Question # 6

Which of the following compounds is explosive in nature?

Question # 7

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

Question # 8

Lime, calcium oxide, is used in agriculture for

Question # 9

Which of the following phosphorus is most reactive?

Question # 10

Baking powder has which one of the following formula

Question # 11

Which of the following equations represents the action of heat on NaHCO3

Question # 12

Sulphuric acid reacts with PCl5to give

Question # 13

The alkali metals form

Question # 14

What is chrome yellow?

Question # 15

Which salt is used for preserving food

Question # 16

Heavy water is obtained by

Question # 17

Which element has highest oxidation potential

Question # 18

Tincal is a mineral of:

Question # 19

Sodium is manufacture by the electrolysis of fused sodium chloride and not from an aqueous solution of sodium chloride because

Question # 20

What is the formula of asbestos?

Question # 21

Which of the following oxides is peroxide?

Question # 22

Which one of the following does not belong to alkaline earth metals

Question # 23

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

Question # 24

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

Question # 25

The acid which has a peroxy linkage is

Question # 26

Ozone is not

Question # 27

Which of the following is the hardest metal among following

Question # 28

Which property is not present in Al?

Question # 29

White phosphorus is

Question # 30

Chemical composition of colemnite is:

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Aluminium oxide is:
A. Acidic oxide
B. Basic oxide
C. Amphoteric oxided
D. None of these
2 What is chrome yellow?
A. Pbo
B. Pb2O
C. PbCrO4
D. Pb3O4
3 Which metal is used in the thermit process because of its activity?
A. Iron
B. Copper
C. Alumnium
D. Zinc
4 When ammonia is heated with cupric oxide, a molecule of ammonia will
A. Gain 3 electrons
B. Lose 3 electrons
C. Gain 2 electrons
D. Lose 2 electrons
5 The number of unpaired electrons in the p-subshell of oxygen atom
A. 1
B. 2
C. 3
D. 4
6 The chemical formula of Epson salt is
A. MgSO4
B. MgCl2
C. MgSO4. 7H2O
D. MgCl2. 7H2O
7 The oxyacids of phosphorus in which phosphorus has the lowest oxidiation state is
A. Hypophosphorus acid
B. Orthophosphorus acid
C. Pyrophosphorus acid
D. Metaphosphorus acid
8 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
9 Crystalline form of sulphur stable at room temperature is
A. Rhombic sulphur
B. Monoclinic sulphur
C. Plastic sulphur
D. Prismatic sulphur
10 Which of the following is not the reactions of lithium

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