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

Which colour is imparted by sodium

Question # 2

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

Question # 3

Which one of the following pentafluorides cannot be formed?

Question # 4

Gypsum is a common mineral of

Question # 5

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

Question # 6

______ is called milk of magnesia

Question # 7

______ gives peroxide

Question # 8

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

Question # 9

The number of electron that are paired in oxygen molecule are

Question # 10

Hypo is used in photography for

Question # 11

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

Question # 12

Which has soapy touch?

Question # 13

All the elements of oxygen family are

Question # 14

Which carbonate of alkali metals is insoluble in water

Question # 15

The chemical formula of magnesite is

Question # 16

Which of the following sulphates has the highest solubility in water

Question # 17

P2O5is heated with water to give

Question # 18

Pb has inert pair of electrons:

Question # 19

Dipole moment of CO molecule is:

Question # 20

In the earth crust sodium is

Question # 21

Which salt is used for the treatment of hyperacidity in stomach

Question # 22

Sometimes a yellow turbidity appears while passing H2S gas even in the absence of II group radicals. This is because

Question # 23

On alkali and alkaline earth metals down the group, there is decreasing trend in

Question # 24

The element which has a simple cubic lattice in solid state is

Question # 25

______ reacts with alkalis to give hydrogen

Question # 26

Where lime is not used

Question # 27

Sodium should be stored in

Question # 28

Which is litharge or massicot?

Question # 29

Lime, calcium oxide, is used in agriculture for

Question # 30

Which of the following are electropositive in nature

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Corrundam is ore of:
A. Li
B. Be
C. B
D. Al
2 Basicity of orthoposphoric acid is
A. 2
B. 3
C. 4
D. 5
3 Which is used to remove air bubbles form metals?
A. B
B. Be
C. Mg
D. Al
4 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
5 S-block elements consist of
A. Alkali metals
B. Alkaline earth metals
C. Alkali and alkaline earth metals
D. None of these
6 Hybridized in oxygen is:
A. sp
B. sp2
C. sp3
D. dsp3
7 Sodium hexametaphophate is known as
A. Calgon
B. Permutite
C. Natalite
D. Nitrolim
8 When SO2is passed through acidified K2Cr2O7solution
A. The solution turns blue
B. The solution is decolourised
C. SO2is reduced
D. Green Cr2(SO4)3is formed
9 Gypsum is a common mineral of
A. Magnesium
B. Strontium
C. Calcium
D. Barium
10 Which salt is used for preserving food
A. BaCl2
B. CaCl2
C. NaCl
D. Na2SO4

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