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

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

Question # 2

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

Question # 3

What is the formula of asbestos?

Question # 4

Silicon atom is hybridized:

Question # 5

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

Question # 6

The maximum number of electrons in the outermost shall of s-black elements is

Question # 7

Bond angle is minimum for

Question # 8

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

Question # 9

White phosphorus is

Question # 10

Which oxide of nitrogen is obtained on heating ammonium nitrate at 250° C?

Question # 11

When SO2is passed through acidified K2Cr2O7solution

Question # 12

Phosphide ion has the electronic structure similar to that of

Question # 13

Commercial common salt becomes slight damp on storing because

Question # 14

Which is used in navigational equipments?

Question # 15

Borax is hydrated:

Question # 16

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

Question # 17

Which is used to remove air bubbles form metals?

Question # 18

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

Question # 19

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

Question # 20

Which of the following are electropositive in nature

Question # 21

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

Question # 22

Orthophosphoric acid is

Question # 23

Permonosulphuric acid is known as

Question # 24

Polyanion formation is maximum in

Question # 25

The chemical formula of Trona is

Question # 26

The acid which has a peroxy linkage is

Question # 27

Which property is not present in Al?

Question # 28

Phosphorus pentoxide finds use as

Question # 29

Red P can be obtained form white P by

Question # 30

The chemical formula of chile salt peter is

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 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
2 Alkaline earth metals are usually
A. Reducing agent
B. Oxidizing agent
C. Amphoteric
D. Acidic
3 S-block elements consist of
A. Alkali metals
B. Alkaline earth metals
C. Alkali and alkaline earth metals
D. None of these
4 Which is litharge or massicot?
A. PbO
B. Pb2O
C. Pb3O4
D. PbO2
5 Sodium should be stored in
A. Air free from moisture
B. Air free form carbon dioxide
C. Under water
D. Under kerosene oil
6 Lime, calcium oxide, is used in agriculture for
A. Adding ca metal in soil
B. Making soil acidic
C. Neutralizing acidic soil
D. Adding oxygen to soil
7 Sulphuric acid reacts with PCl5to give
A. Thionyl chloride
B. Sulphur monochloride
C. Sulphuryl chloride
D. Sulphur tetrachloride
8 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
9 Sometimes a yellow turbidity appears while passing H2S gas even in the absence of II group radicals. This is because
A. Sulphur is present in the mixture as impurity
B. IV group radicals are precipitated as sulphides
C. Of the oxidation of H2S gas by some acid radicals
D. III group radicals are precipitated as hydroxides
10 The acid which has a peroxy linkage is
A. Sulphurous acid
B. Pyrosulphuric acid
C. Dithionic acid
D. Caro's acid

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