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

Lithium reacts with air to form

Question # 2

Chief ore of aluminium is:

Question # 3

Which will have the maximum value of heat of hydration

Question # 4

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

Question # 5

Bond angle is minimum for

Question # 6

Orthophosphoric acid is

Question # 7

Lime, calcium oxide, is used in agriculture for

Question # 8

Gypsum is applied to the soil to provide calcium and

Question # 9

The maximum number of electrons in the outermost shall of s-black elements is

Question # 10

Which of the following salt is soluble in water

Question # 11

The most acidic of the following compounds is

Question # 12

When SO2is passed through acidified K2Cr2O7solution

Question # 13

The structure of white phosphorus is

Question # 14

Which of the following is the hardest metal among following

Question # 15

Electron affinity of sulphur is

Question # 16

Density of aluminium is (g cm-3):

Question # 17

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

Question # 18

Which one of the following is not an alkali metal

Question # 19

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

Question # 20

Crystalline form of sulphur stable at room temperature is

Question # 21

In the earth crust sodium is

Question # 22

Which of the following is lighter

Question # 23

Which is used in navigational equipments?

Question # 24

Al is the most element in earth crust:

Question # 25

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

Question # 26

P2O5is heated with water to give

Question # 27

Which of the element is not an alkaline earth metal

Question # 28

______ is called milk of magnesia

Question # 29

The chemical formula of Epson salt is

Question # 30

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

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Sulphuric acid reacts with PCl5to give
A. Thionyl chloride
B. Sulphur monochloride
C. Sulphuryl chloride
D. Sulphur tetrachloride
2 Which salt is used for preserving food
A. BaCl2
B. CaCl2
C. NaCl
D. Na2SO4
3 Aluminium oxide is:
A. Acidic oxide
B. Basic oxide
C. Amphoteric oxided
D. None of these
4 Polyanion formation is maximum in
A. Nitrogen
B. Oxygen
C. Sulphur
D. Boron
5 ______ reacts with alkalis to give hydrogen
A. Be
B. Mg
C. Ca
D. None
6 Gypsum is applied to the soil to provide calcium and
A. Oxygen
B. Nitrogen
C. Phosphorous
D. Sulphur
7 Hybridized in carbon is:
A. sp
B. sp2
C. sp3
D. d2sp
8 Which of the following is a tetrabasic acid?
A. ORthophosphoric acid
B. Hyposphosphorus acid
C. Metaphosphoric
D. Pyrophosphoric acid
9 The metal with highest electrical resistance at room temperature is
A. Pb
B. Te
C. Po
D. Fe
10 Dipole moment of CO molecule is:
A. 0.0
B. 1.112 D
C. 0.112 D
D. 2.112 D

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