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

Red P can be obtained form white P by

Question # 2

Electron affinity of sulphur is

Question # 3

Which of all following compound is not possible

Question # 4

The chemical formula of Trona is

Question # 5

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

Question # 6

______ gives peroxide

Question # 7

In the earth crust sodium is

Question # 8

Which salt is used for the treatment of hyperacidity in stomach

Question # 9

Sodium forms largely

Question # 10

Which of the following has highest dipole moment?

Question # 11

Which one of the following elements occurs free in nature?

Question # 12

Hybridized in carbon is:

Question # 13

Marble is chemically

Question # 14

Polyanion formation is maximum in

Question # 15

Which of the following is lighter

Question # 16

Borax is hydrated:

Question # 17

Which element forms an iron with charge 3+?

Question # 18

The alkaline earth elements have in their s-orbital

Question # 19

BiCl3on hydrolysis forms a white precipitate of

Question # 20

All the elements of oxygen family are

Question # 21

In a group IIA from top to bottom as the atomic number increases, there is regular decreases in

Question # 22

What is going to replace the petroleum?

Question # 23

What is chrome yellow?

Question # 24

All the following decompose easily on heating to give oxygen except

Question # 25

Commercial common salt becomes slight damp on storing because

Question # 26

Corrundam is ore of:

Question # 27

Which of the following is not the reactions of lithium

Question # 28

Which of the element is not an alkaline earth metal

Question # 29

The metal with highest electrical resistance at room temperature is

Question # 30

Which is used in navigational equipments?

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 All the following decompose easily on heating to give oxygen except
A. Lead nitrate
B. Potassium chlorate
C. Mercuric oxide
D. Manganese dioxide
2 Borax is a common mineral of alkali metal sodium. Its formula is
A. Na2B4O7
B. Na2,B4O7. 10H2O
C. Na2B3O6. 10H2O
D. Na2B4O7- 5H2O
3 ______ reacts with alkalis to give hydrogen
A. Be
B. Mg
C. Ca
D. None
4 Which of the following elements is not present abundantly in earth's crust?
A. Silicon
B. Aluminium
C. Sodium
D. Oxygen
5 Chief ore of aluminium is:
A. Na3AIF6
B. Al2O3.2H2O
C. Al2O3
D. Al2O3 .H2O
6 Phosphorus pentoxide finds use as
A. An oxidizing agent
B. A reducing agent
C. A bleaching agent
D. A dehydrating agent
7 The metal with highest electrical resistance at room temperature is
A. Pb
B. Te
C. Po
D. Fe
8 Aluminium oxide is:
A. Acidic oxide
B. Basic oxide
C. Amphoteric oxided
D. None of these
9 Bond angle is minimum for
A. H2O
B. H2S
C. H2Se
D. H2Te
10 Oleum is
A. Castor oil
B. Oil of vitriol
C. Fuming of H2SO4
D. None of them

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