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 used in navigational equipments?

Question # 2

Which of the following sulphates is not soluble in water

Question # 3

______ reacts with alkalis to give hydrogen

Question # 4

Polyanion formation is maximum in

Question # 5

Group VA of the periodic table consists of the elements N, P, As, Sb and Bi, On passing from N to Bi, the oxides of the elements of general formula M2O3become

Question # 6

The chemical formula of Trona is

Question # 7

Tincal is a mineral of:

Question # 8

NaHCO3is commonly called

Question # 9

Phosphide ion has the electronic structure similar to that of

Question # 10

Which salt is used for the treatment of hyperacidity in stomach

Question # 11

Which of the following elements is not present abundantly in earth's crust?

Question # 12

Chief ore of aluminium is:

Question # 13

The oxidation number of each element of group l-A is

Question # 14

LiOH ______ soluble than NaOH

Question # 15

When SO2is passed through acidified K2Cr2O7solution

Question # 16

Permonosulphuric acid is known as

Question # 17

Which one of the following is not an alkali metal

Question # 18

Which is an essential constituent of chlorophyll

Question # 19

Which of the following is acidic?

Question # 20

The chemical formula of chile salt peter is

Question # 21

Heavy water is obtained by

Question # 22

Which property is not present in Al?

Question # 23

All the elements of oxygen family are

Question # 24

Alkaline earth metals are usually

Question # 25

As a fixing agent in photography, sodium thisoulphate is used for

Question # 26

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

Question # 27

Which of the following form normal oxide

Question # 28

Boric acid cannot be used:

Question # 29

Copper oxide is dedected by borax bead test with colour:

Question # 30

The acid which has a peroxy linkage is

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Which one of the following equations represent the reaction that occurs when calcium nitrate is heated strongly
2 The metal with highest electrical resistance at room temperature is
A. Pb
B. Te
C. Po
D. Fe
3 Sodium is manufacture by the electrolysis of fused sodium chloride and not from an aqueous solution of sodium chloride because
A. Sodium chloride does not ionize in the water solution
B. Sodium chloride is not soluble in water
C. Sodium deposited at the cathode may react with water to form sodium hydroxide
D. Electricity does not pass through aqueous NaCl
4 Basicity of orthoposphoric acid is
A. 2
B. 3
C. 4
D. 5
5 The most acidic of the following compounds is
A. P2O3
B. Sb2O3
C. B2O3
D. As2O3
6 Which colour is imparted by sodium
A. Yellow
B. Violet
C. Red
D. Crimson
7 Chemical composition of colemnite is:
A. Ca2B6O11.5H2O
B. CaB4O7 .4 H2O
C. Na2B7O7. 4 H2O
D. CaNaB5O9.8H2O
8 Red P can be obtained form white P by
A. Heating it with a catalyst in an inert atmosphere
B. Distilling it in an inert atmosphere
C. Dissolving it in CS2and crysllizing
D. Melting it ad pouring the liquid into water
9 Which will have the maximum value of heat of hydration
A. Na+
B. Cs+
C. Ba+2
D. Mg+2
10 In a group IIA from top to bottom as the atomic number increases, there is regular decreases in
A. Ionic size
B. Atomic size
C. Ionization potential
D. None of these

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