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

CaC2on hydrolysis form

Question # 2

The electrolytic cell used for the production of metallic sodium is known as

Question # 3

Identify the incorrect statement with respect to ozone

Question # 4

Polyanion formation is maximum in

Question # 5

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

Question # 6

Commercial common salt becomes slight damp on storing because

Question # 7

Permonosulphuric acid is known as

Question # 8

Chile saltpetre has the chemical formula

Question # 9

Down's cell is used to prepare

Question # 10

Which of the following has highest dipole moment?

Question # 11

Sulphuric acid reacts with PCl5to give

Question # 12

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

Question # 13

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

Question # 14

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

Question # 15

Which of the following are electropositive in nature

Question # 16

Which on of the following compounds does not exist?

Question # 17

Which element forms an iron with charge 3+?

Question # 18

Which salt is used for preserving food

Question # 19

The alkaline earth elements have in their s-orbital

Question # 20

Gypsum is a common mineral of

Question # 21

Which element has highest oxidation potential

Question # 22

Which of all following compound is not possible

Question # 23

Which of the following is not the reactions of lithium

Question # 24

Oleum is

Question # 25

Which of the following phosphorus is most reactive?

Question # 26

Which is not the form of silica?

Question # 27

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

Question # 28

Phosphorus pentoxide finds use as

Question # 29

Which one of the following is not an alkali metal

Question # 30

Which of the following is lighter

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Heavy water is obtained by
A. Prolonged electrolysis of water
B. Dissolving heavy salt in water
C. Simple distillation of water
D. Removing impurities of calcium and magnesium form water
2 Al is the most element in earth crust:
A. O
B. Si
C. Al
D. Pb
3 Orthophosphoric acid is
A. Monobasic
B. Dibasic
C. Tribasic
D. Tetrabasic
4 The chemical formula of Trona is
A. KCl . MgCl2. 6H2O
B. Na2CO3. 2NaHCO3. 2H2O
C. Na2CO3. H2O
D. KCl
5 Which of the element is not an alkaline earth metal
A. Beryllium
B. Strontium
C. Barium
D. Caesium
6 P2O5is heated with water to give
A. Hypophosphorus acid
B. Phosphorus acid
C. Hypophosphorus acid
D. Orthophosphorus acid
7 The alkali metals form
A. Ionic bond
B. Covalent bond
C. Co-ordinate bond
D. H-bond
8 The metal with highest electrical resistance at room temperature is
A. Pb
B. Te
C. Po
D. Fe
9 Density of aluminium is (g cm-3):
A. B
B. Al
C. Si
D. Ge
10 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

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