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

Identify the incorrect statement with respect to ozone

Question # 2

Which of the following element is most reactive

Question # 3

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

Question # 4

Dipole moment of CO molecule is:

Question # 5

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

Question # 6

Hypo is used in photography for

Question # 7

LiOH ______ soluble than NaOH

Question # 8

Pb has inert pair of electrons:

Question # 9

Which of all following compound is not possible

Question # 10

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

Question # 11

Copper oxide is dedected by borax bead test with colour:

Question # 12

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

Question # 13

Density of aluminium is (g cm-3):

Question # 14

Which one of the following pentafluorides cannot be formed?

Question # 15

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

Question # 16

Which of the following is not the reactions of lithium

Question # 17

The chemical formula of gypsum is

Question # 18

Corrundam is ore of:

Question # 19

Which of the following phosphorus is most reactive?

Question # 20

What is going to replace the petroleum?

Question # 21

When a colourless gas is passed through bromine water only decolourisation takes place the gas is

Question # 22

Tincal is a mineral of:

Question # 23

Gypsum is applied to the soil to provide calcium and

Question # 24

The ore CaSO42H2O has the general name

Question # 25

Which of the following form normal oxide

Question # 26

Down's cell is used to prepare

Question # 27

P2O5is heated with water to give

Question # 28

Lithium reacts with air to form

Question # 29

Commercial common salt becomes slight damp on storing because

Question # 30

What is chrome yellow?

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 The most acidic of the following compounds is
A. P2O3
B. Sb2O3
C. B2O3
D. As2O3
2 Sulphuric acid reacts with PCl5to give
A. Thionyl chloride
B. Sulphur monochloride
C. Sulphuryl chloride
D. Sulphur tetrachloride
3 Which element form group 15 gives most basic compound with hydrogen?
A. Nitrogen
B. Bismuth
C. Arsenic
D. Phosphorus
4 The silver bromide in hypo (Na2S2O3) solution is
A. Soluble
B. Not soluble
C. Precipitated
D. Not effect
5 What causes nitrogen to be chemically inert?
A. Multiple bond formation in the molecule
B. Absence of bond distance
C. Short internuclear distance
D. High bond energy
6 LiOH ______ soluble than NaOH
A. More soluble
B. Less soluble
C. Equally soluble
D. None
7 Sodium is never found free in nature because of its
A. Chemical reactivity
B. Small ionic size
C. Small atomic volume
D. None of these
8 Where lime is not used
A. In refining or metals
B. In paper industry
C. In glass industry
D. In the preparation of NaOH
9 When ammonia is heated with cupric oxide, a molecule of ammonia will
A. Gain 3 electrons
B. Lose 3 electrons
C. Gain 2 electrons
D. Lose 2 electrons
10 The oxidation number of each element of group ll-A is
A. 0
B. +1
C. +2
D. -1

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