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

Sodium hexametaphophate is known as

Question # 2

Electron affinity of sulphur is

Question # 3

Which carbonate of alkali metals is insoluble in water

Question # 4

Which is not the form of silica?

Question # 5

Lime, calcium oxide, is used in agriculture for

Question # 6

Which of the following is the hardest metal among following

Question # 7

Which is used in navigational equipments?

Question # 8

Borax is hydrated:

Question # 9

Commercial common salt becomes slight damp on storing because

Question # 10

Which salt is used for the treatment of hyperacidity in stomach

Question # 11

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

Question # 12

Chief ore of aluminium is:

Question # 13

The structure of white phosphorus is

Question # 14

Aluminium oxide is:

Question # 15

The chemical formula of Trona is

Question # 16

Boric acid cannot be used:

Question # 17

White phosphorus is

Question # 18

______ gives peroxide

Question # 19

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

Question # 20

The chemical formula of chile salt peter is

Question # 21

Which will have the maximum value of heat of hydration

Question # 22

Which of the following sulphates is not soluble in water

Question # 23

Which of the following elements is not present abundantly in earth's crust?

Question # 24

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

Question # 25

What is going to replace the petroleum?

Question # 26

Heavy water is obtained by

Question # 27

Which of the following sulphates has the highest solubility in water

Question # 28

Calcium carbide reacts with water to produce

Question # 29

Ozone is not

Question # 30

Baking powder has which one of the following formula

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Which element among the following belongs to Group IV-A of the periodic table?
A. Barium
B. Iodine
C. Lead
D. Oxygen
2 NaHCO3is prepared by
A. Down's process
B. Solvay's process
C. Nelson's process
D. None of these
3 Which of the following element is most reactive
A. Li
B. Na
C. K
D. Cs
4 Down's cell is used to prepare
A. Sodium carbonate
B. Sodium bicarbonate
C. Sodium metal
D. Sodium hydroxide
5 Alkali metals react violently with halogens to form
A. Hydrides
B. Halides
C. Anyhydrides
D. None of these
6 Francium is an element at the bottom of Group I in the Periodic Table. Which one of the following predication is likely to be correct?
A. It will react with water to liberate oxygen
B. Its hydroxide will be a strong alkali in water
C. Its carbonate will decompose on heating to give carbon dioxide
D. Its nitrate on heating will give nitrogen dioxide and oxygen
7 Which of the following compounds is explosive in nature?
A. Phosphorus trichloride
B. Nitrogen trichloride
C. Hyponitrous acid
D. Nitrosyl chloride
8 Marble is chemically
A. CaCl2
B. CaCO3
C. Na2CO3
D. NaHCO3
9 Red P can be obtained form white P by
A. Heating it with a catalyst in an inert atmosphere
B. Distilling it in an inert atmosphere
C. Dissolving it in CS2and crysllizing
D. Melting it ad pouring the liquid into water
10 Which is used in navigational equipments?
A. B
B. Be
C. Mg
D. Al

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