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

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

Question # 3

The formula of lime stone is

Question # 4

Where lime is not used

Question # 5

P2O5is heated with water to give

Question # 6

All the following decompose easily on heating to give oxygen except

Question # 7

Orthophosphoric acid is

Question # 8

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

Question # 9

______ is called milk of magnesia

Question # 10

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

Question # 11

Which of the following sulphates is not soluble in water

Question # 12

Lithium reacts with air to form

Question # 13

Alkaline earth metals posses two electrons in their outermost

Question # 14

Electron affinity of sulphur is

Question # 15

When sulphur is boiled with Na2SO3solution, the compound formed is

Question # 16

Sulphuric acid has great affinity for water because

Question # 17

Which of the following is the hardest metal among following

Question # 18

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

Question # 19

The chemical formula of Epson salt is

Question # 20

The chemical formula of Trona is

Question # 21

What causes nitrogen to be chemically inert?

Question # 22

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

Question # 23

Alkali metals react violently with halogens to form

Question # 24

Which of all following compound is not possible

Question # 25

Which has soapy touch?

Question # 26

The structure of white phosphorus is

Question # 27

Chemical composition of colemnite is:

Question # 28

Which is used in navigational equipments?

Question # 29

Sodium should be stored in

Question # 30

Which one of the following is not an alkali metal

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 S-block elements consist of
A. Alkali metals
B. Alkaline earth metals
C. Alkali and alkaline earth metals
D. None of these
2 Hypo is used in photography for
A. Developing picture
B. Picture printed
C. The colour of picture
D. The fixation of picture
3 Which is litharge or massicot?
A. PbO
B. Pb2O
C. Pb3O4
D. PbO2
4 Borax is hydrated:
A. Penta
B. Deca
C. Hepta
D. Octa
5 Which is used to remove air bubbles form metals?
A. B
B. Be
C. Mg
D. Al
6 The number of electron that are paired in oxygen molecule are
A. 16
B. 12
C. 14
D. 7
7 Sulphuric acid has great affinity for water because
A. It hydrolyses the acid
B. It decomposes the acid
C. Acid forms hydrates with water
D. Acid decomposes water
8 Al is the most element in earth crust:
A. O
B. Si
C. Al
D. Pb
9 Hybridized in oxygen is:
A. sp
B. sp2
C. sp3
D. dsp3
10 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

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