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 of the following sulphates has the highest solubility in water

Question # 2

______ reacts with alkalis to give hydrogen

Question # 3

Hybridized in carbon is:

Question # 4

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

Question # 5

Which of the following equations represents the action of heat on NaHCO3

Question # 6

Calcium carbide reacts with water to produce

Question # 7

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

Question # 8

The silver bromide in hypo (Na2S2O3) solution is

Question # 9

The element caesium bears resemblance with

Question # 10

Lime, calcium oxide, is used in agriculture for

Question # 11

The chemical formula of chile salt peter is

Question # 12

Which element has highest oxidation potential

Question # 13

Boric acid cannot be used:

Question # 14

Which of all following compound is not possible

Question # 15

Chile saltpetre has the chemical formula

Question # 16

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

Question # 17

Phosphide ion has the electronic structure similar to that of

Question # 18

Oleum is

Question # 19

Which will have the maximum value of heat of hydration

Question # 20

White P when boiled with strong solution of caustic soda produces

Question # 21

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

Question # 22

LiOH ______ soluble than NaOH

Question # 23

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

Question # 24

What causes nitrogen to be chemically inert?

Question # 25

Which of the following compounds is explosive in nature?

Question # 26

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

Question # 27

S-block elements consist of

Question # 28

Down's cell is used to prepare

Question # 29

Which of the following element is most reactive

Question # 30

Tincal is a mineral of:

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Chemical composition of colemnite is:
A. Ca2B6O11.5H2O
B. CaB4O7 .4 H2O
C. Na2B7O7. 4 H2O
D. CaNaB5O9.8H2O
2 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
3 The chemical formula of Trona is
A. KCl . MgCl2. 6H2O
B. Na2CO3. 2NaHCO3. 2H2O
C. Na2CO3. H2O
D. KCl
4 NaHCO3is commonly called
A. Soda ash
B. Baking soda
C. Washing soda
D. None of these
5 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
6 Which of the following is formed by the action of water on sodium peroxide?
A. H2
B. N2
C. O2
D. CO2
7 Alkali metals react violently with halogens to form
A. Hydrides
B. Halides
C. Anyhydrides
D. None of these
8 The element caesium bears resemblance with
A. Ca
B. Cr
C. Rubidium
D. None of the above
9 Hybridized in oxygen is:
A. sp
B. sp2
C. sp3
D. dsp3
10 Identify the incorrect statement with respect to ozone
A. Ozone is formed in the upper atmosphere by a photochemical reaction involving dioxygen
B. Ozone is more reactive than diaoxygen
C. Ozone is diamagnetic whereas dioxygen is paramagnetic
D. Ozone protects the earth's inhabitants by absorbing gamma-radiations

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