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

The element caesium bears resemblance with

Question # 2

Which carbonate of alkali metals is insoluble in water

Question # 3

Chile saltpetre has the chemical formula

Question # 4

Pb has inert pair of electrons:

Question # 5

The chemical formula of gypsum is

Question # 6

Which of the element is not an alkaline earth metal

Question # 7

Which is used to remove air bubbles form metals?

Question # 8

Orthophosphoric acid is

Question # 9

Density of aluminium is (g cm-3):

Question # 10

Which metal of Group-II A of the periodic Table, will form the least ionic chloride

Question # 11

Which of the following form normal oxide

Question # 12

Sodium hexametaphophate is known as

Question # 13

Which metal is used in the thermit process because of its activity?

Question # 14

BiCl3on hydrolysis forms a white precipitate of

Question # 15

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 # 16

Carbonates of alkali metals dissolves freely in water to form

Question # 17

Polyanion formation is maximum in

Question # 18

NaHCO3is prepared by

Question # 19

The chemical formula of chile salt peter is

Question # 20

Which is litharge or massicot?

Question # 21

Copper oxide is dedected by borax bead test with colour:

Question # 22

Heavy water is obtained by

Question # 23

Solvay process is used in the manufacture of

Question # 24

______ is used in breathing equipments for mountaineers and in space craft

Question # 25

Bond angle is minimum for

Question # 26

The most acidic of the following compounds is

Question # 27

Lime, calcium oxide, is used in agriculture for

Question # 28

Which salt is used for preserving food

Question # 29

Which element form group 15 gives most basic compound with hydrogen?

Question # 30

Silicon atom is hybridized:

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 When sulphur is boiled with Na2SO3solution, the compound formed is
A. Sodium sulphides
B. Sodiums sulphates
C. Sodium persulphate
D. Sodium thiosulphate
2 Which oxide of nitrogen is obtained on heating ammonium nitrate at 250° C?
A. Nitric oxide
B. Nitrous oxide
C. Nitrogen dioxide
D. Dinitrogen tetraoxide
3 Which of the following element is most reactive
A. Li
B. Na
C. K
D. Cs
4 Each of the following is true of white and red phosphours except that they
A. Are both soluble in CS2
B. Can be oxidized by heating in air
C. Consist of the same kind of atoms
D. Can be converted into one another
5 Silicon atom is hybridized:
A. sp
B. sp2
C. sp3
D. dsp2
6 Dipole moment of CO molecule is:
A. 0.0
B. 1.112 D
C. 0.112 D
D. 2.112 D
7 White P when boiled with strong solution of caustic soda produces
A. Phosphine
B. Posh acid
C. Phosphorous acid
D. None
8 Hypo is used in photography for
A. Developing picture
B. Picture printed
C. The colour of picture
D. The fixation of picture
9 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
10 Hybridized in oxygen is:
A. sp
B. sp2
C. sp3
D. dsp3

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