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

Which is not the form of silica?

Question # 2

Crystalline form of sulphur stable at room temperature is

Question # 3

Oleum is

Question # 4

Which of the following salt is soluble in water

Question # 5

Alkaline earth metals posses two electrons in their outermost

Question # 6

Commercial common salt becomes slight damp on storing because

Question # 7

Which on of the following compounds does not exist?

Question # 8

Aluminium oxide is:

Question # 9

BiCl3on hydrolysis forms a white precipitate of

Question # 10

Sodium should be stored in

Question # 11

The number of electron that are paired in oxygen molecule are

Question # 12

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

Question # 13

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

Question # 14

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

Question # 15

The chemical formula of gypsum is

Question # 16

Carbonates of alkali metals dissolves freely in water to form

Question # 17

Which is litharge or massicot?

Question # 18

Which of the element is not alkali metal

Question # 19

______ gives peroxide

Question # 20

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

Question # 21

White phosphorus is

Question # 22

Which of the following is not the reactions of lithium

Question # 23

Alkali metals react violently with halogens to form

Question # 24

Which property is not present in Al?

Question # 25

When SO2is passed through acidified K2Cr2O7solution

Question # 26

Density of aluminium is (g cm-3):

Question # 27

Baking powder has which one of the following formula

Question # 28

LiOH ______ soluble than NaOH

Question # 29

Heavy water is obtained by

Question # 30

Which of the following element is most reactive

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Phosphorus pentoxide finds use as
A. An oxidizing agent
B. A reducing agent
C. A bleaching agent
D. A dehydrating agent
2 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?
A. It will react with water to liberate oxygen
B. Its hydroxide will be a strong alkali in water
C. Its carbonate will decompose on heating to give carbon dioxide
D. Its nitrate on heating will give nitrogen dioxide and oxygen
3 What is chrome yellow?
A. Pbo
B. Pb2O
C. PbCrO4
D. Pb3O4
4 Which of the element is not an alkaline earth metal
A. Beryllium
B. Strontium
C. Barium
D. Caesium
5 Which is used to remove air bubbles form metals?
A. B
B. Be
C. Mg
D. Al
6 Which of all following compound is not possible
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 Which of the following salt is soluble in water
A. CaCO3
B. CaSO4
C. MgSO4
D. BaSO4
9 Sodium hexametaphophate is known as
A. Calgon
B. Permutite
C. Natalite
D. Nitrolim
10 On alkali and alkaline earth metals down the group, there is decreasing trend in
A. m.p.
B. b.p.
C. Ionization potentiall
D. All of these

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