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

00:00
Question # 1

Borax is hydrated:

Question # 2

Bond angle is minimum for

Question # 3

Alkaline earth metals are usually

Question # 4

Which of the following is formed by the action of water on sodium peroxide?

Question # 5

S-block elements consist of

Question # 6

In the earth crust sodium is

Question # 7

Commercial common salt becomes slight damp on storing because

Question # 8

Gypsum is applied to the soil to provide calcium and

Question # 9

Which of the following elements is most metallic?

Question # 10

The chemical formula of magnesite is

Question # 11

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

Question # 12

Which of the following has highest dipole moment?

Question # 13

Hybridized in carbon is:

Question # 14

LiOH ______ soluble than NaOH

Question # 15

Which element has highest oxidation potential

Question # 16

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

Question # 17

Sulphuric acid reacts with PCl5to give

Question # 18

Which of the following compounds is explosive in nature?

Question # 19

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

Question # 20

Sulphuric acid has great affinity for water because

Question # 21

______ reacts with alkalis to give hydrogen

Question # 22

Sodium forms largely

Question # 23

Which will have the maximum value of heat of hydration

Question # 24

Corrundam is ore of:

Question # 25

P2O5is heated with water to give

Question # 26

Which element forms an iron with charge 3+?

Question # 27

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

Question # 28

Sodium is never found free in nature because of its

Question # 29

What is going to replace the petroleum?

Question # 30

Which of the following statement is not related to Solvay's process of Na2CO3

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Which of the following salt is used as purgative
A. CaSO4
B. MgSO4
C. BeSO4
D. NaCl
2 Copper oxide is dedected by borax bead test with colour:
A. Blue
B. Red
C. Yellow
D. Black
3 The structure of white phosphorus is
A. Square planar
B. Pyramidal
C. Tetrahedral
D. Trigonal planer
4 Ozone is not
A. An allotrope
B. A powerful oxidizing agent
C. Paramagnetic
D. A bent molecule
5 Which of the following element is most reactive
A. Li
B. Na
C. K
D. Cs
6 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
7 ______ reacts with alkalis to give hydrogen
A. Be
B. Mg
C. Ca
D. None
8 Calcium carbide reacts with water to produce
A. Acetylene
B. Methane
C. Ethylene
D. Ethane
9 Sodium should be stored in
A. Air free from moisture
B. Air free form carbon dioxide
C. Under water
D. Under kerosene oil
10 CaC2on hydrolysis form
A. CH4
B. C2H4
C. C2H2
D. C6H6

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