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

Borax is hydrated:

Question # 2

Phosphide ion has the electronic structure similar to that of

Question # 3

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

Question # 4

Which one of the following properties is not correct for ozone?

Question # 5

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

Question # 6

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

Question # 7

Sodium should be stored in

Question # 8

Hypo is used in photography for

Question # 9

All the elements of oxygen family are

Question # 10

Alkaline earth metals posses two electrons in their outermost

Question # 11

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

Question # 12

Which will have the maximum value of heat of hydration

Question # 13

The chemical formula of chile salt peter is

Question # 14

The formula of lime stone is

Question # 15

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

Question # 16

Bond angle is minimum for

Question # 17

Copper oxide is dedected by borax bead test with colour:

Question # 18

The most acidic of the following compounds is

Question # 19

Sulphuric acid reacts with PCl5to give

Question # 20

______ gives peroxide

Question # 21

Phosphorus pentoxide finds use as

Question # 22

Corrundam is ore of:

Question # 23

Which salt is used for preserving food

Question # 24

Sodium forms largely

Question # 25

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

Question # 26

The chemical formula of magnesite is

Question # 27

Which of the following salt is soluble in water

Question # 28

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?

Question # 29

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

Question # 30

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

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Basicity of orthoposphoric acid is
A. 2
B. 3
C. 4
D. 5
2 Phosphorus pentoxide finds use as
A. An oxidizing agent
B. A reducing agent
C. A bleaching agent
D. A dehydrating agent
3 Which one of the following elements occurs free in nature?
A. N
B. P
C. As
D. Sb
4 Borax is hydrated:
A. Penta
B. Deca
C. Hepta
D. Octa
5 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
6 Solvay process is used in the manufacture of
A. Na2CO3
B. NaHCO3
C. CaCl2
D. All
7 Which of the following is a tetrabasic acid?
A. ORthophosphoric acid
B. Hyposphosphorus acid
C. Metaphosphoric
D. Pyrophosphoric acid
8 Which of the following has highest dipole moment?
A. NH3
B. PH3
C. AsH3
D. SbH3
9 Which of the following is lighter
A. Li
B. k
C. Na
D. Ca
10 What is chrome yellow?
A. Pbo
B. Pb2O
C. PbCrO4
D. Pb3O4

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