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

Corrundam is ore of:

Question # 2

Which of the following element is most reactive

Question # 3

White P when boiled with strong solution of caustic soda produces

Question # 4

Which one of the following pentafluorides cannot be formed?

Question # 5

Which of the following elements is most metallic?

Question # 6

Which of the following is the hardest metal among following

Question # 7

Which electronic configuration corresponds to an element of Group ||Z-A of the periodic table?

Question # 8

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

Question # 9

Marble is chemically

Question # 10

Hybridized in carbon is:

Question # 11

What causes nitrogen to be chemically inert?

Question # 12

In the earth crust sodium is

Question # 13

Phosphine is not obtained by the reaction when

Question # 14

Bond angle is minimum for

Question # 15

Copper oxide is dedected by borax bead test with colour:

Question # 16

Crystalline form of sulphur stable at room temperature is

Question # 17

Lime, calcium oxide, is used in agriculture for

Question # 18

Al is the most element in earth crust:

Question # 19

Which of the following salt is used as purgative

Question # 20

Alkaline earth metals posses two electrons in their outermost

Question # 21

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

Question # 22

Boric acid cannot be used:

Question # 23

Which oxide of nitrogen is obtained on heating ammonium nitrate at 250° C?

Question # 24

Solvay process is used in the manufacture of

Question # 25

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

Question # 26

Borax is hydrated:

Question # 27

Alkali metals react violently with halogens to form

Question # 28

Sodium hexametaphophate is known as

Question # 29

Which is an essential constituent of chlorophyll

Question # 30

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

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 When sulphur is boiled with Na2SO3solution, the compound formed is
A. Sodium sulphides
B. Sodiums sulphates
C. Sodium persulphate
D. Sodium thiosulphate
2 Permonosulphuric acid is known as
A. Marshall's acid
B. Carlo's acid
C. Sulphuric acid
D. None of these
3 Which of the following elements is not present abundantly in earth's crust?
A. Silicon
B. Aluminium
C. Sodium
D. Oxygen
4 ______ gives peroxide
A. Li
B. Ba
C. Sr
D. Be
5 What is the formula of asbestos?
A. CaMg3(SiO3)4
B. CaSiO3
C. Na2SiO3
D. Mg3H2(SiO3)4
6 Marble is chemically
A. CaCl2
B. CaCO3
C. Na2CO3
D. NaHCO3
7 Silicon atom is hybridized:
A. sp
B. sp2
C. sp3
D. dsp2
8 Oleum is
A. Castor oil
B. Oil of vitriol
C. Fuming of H2SO4
D. None of them
9 When SO2is passed through acidified K2Cr2O7solution
A. The solution turns blue
B. The solution is decolourised
C. SO2is reduced
D. Green Cr2(SO4)3is formed
10 Heavy water is obtained by
A. Prolonged electrolysis of water
B. Dissolving heavy salt in water
C. Simple distillation of water
D. Removing impurities of calcium and magnesium form water

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