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

The acid used in lead storage cells is

Question # 2

Phosphide ion has the electronic structure similar to that of

Question # 3

What is the formula of asbestos?

Question # 4

Which of the following fluorides does not exists?

Question # 5

______ reacts with alkalis to give hydrogen

Question # 6

Which is an essential constituent of chlorophyll

Question # 7

Which carbonate of alkali metals is insoluble in water

Question # 8

Alkaline earth metals are usually

Question # 9

Hybridized in oxygen is:

Question # 10

Commercial common salt becomes slight damp on storing because

Question # 11

Solvay process is used in the manufacture of

Question # 12

Permonosulphuric acid is known as

Question # 13

Phosphine is not obtained by the reaction when

Question # 14

Copper oxide is dedected by borax bead test with colour:

Question # 15

The number of unpaired electrons in the p-subshell of oxygen atom

Question # 16

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

Question # 17

The alkaline earth elements have in their s-orbital

Question # 18

Phosphorus pentoxide finds use as

Question # 19

Which has soapy touch?

Question # 20

Which metal is used in the thermit process because of its activity?

Question # 21

Baking powder has which one of the following formula

Question # 22

Which metal of Group-II A of the periodic Table, will form the least ionic chloride

Question # 23

The number of electron that are paired in oxygen molecule are

Question # 24

Polyanion formation is maximum in

Question # 25

A compound used as eye wash:

Question # 26

What causes nitrogen to be chemically inert?

Question # 27

Chief ore of aluminium is:

Question # 28

Sodium is manufacture by the electrolysis of fused sodium chloride and not from an aqueous solution of sodium chloride because

Question # 29

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

Question # 30

Sodium is never found free in nature because of its

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 ______ is called milk of magnesia
A. NaOH
B. KOH
C. LiOH
D. None
2 Chemical composition of colemnite is:
A. Ca2B6O11.5H2O
B. CaB4O7 .4 H2O
C. Na2B7O7. 4 H2O
D. CaNaB5O9.8H2O
3 HNO2acts as an/a
A. Acid
B. Oxidizing agent
C. Reducing agent
D. All the three
4 S-block elements consist of
A. Alkali metals
B. Alkaline earth metals
C. Alkali and alkaline earth metals
D. None of these
5 Silicon atom is hybridized:
A. sp
B. sp2
C. sp3
D. dsp2
6 The element caesium bears resemblance with
A. Ca
B. Cr
C. Rubidium
D. None of the above
7 Baking powder has which one of the following formula
A. Na2CO3
B. Na2SO4
C. NaHCO3
D. K2CO3
8 Which of the following salt is used as purgative
A. CaSO4
B. MgSO4
C. BeSO4
D. NaCl
9 Borax is hydrated:
A. Penta
B. Deca
C. Hepta
D. Octa
10 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

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