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

00:00
Question # 1

Density of aluminium is (g cm-3):

Question # 2

LiOH ______ soluble than NaOH

Question # 3

Which is used to remove air bubbles form metals?

Question # 4

Sometimes a yellow turbidity appears while passing H2S gas even in the absence of II group radicals. This is because

Question # 5

Which of the following form normal oxide

Question # 6

Ozone is not

Question # 7

Corrundam is ore of:

Question # 8

Oleum is

Question # 9

What is going to replace the petroleum?

Question # 10

Which of the following is acidic?

Question # 11

Basicity of orthoposphoric acid is

Question # 12

Phosphide ion has the electronic structure similar to that of

Question # 13

Copper oxide is dedected by borax bead test with colour:

Question # 14

The oxyacids of phosphorus in which phosphorus has the lowest oxidiation state is

Question # 15

Gypsum is applied to the soil to provide calcium and

Question # 16

The chemical formula of gypsum is

Question # 17

Which of all following compound is not possible

Question # 18

Pb has inert pair of electrons:

Question # 19

Lime, calcium oxide, is used in agriculture for

Question # 20

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

Question # 21

The formula of lime stone is

Question # 22

Electron affinity of sulphur is

Question # 23

Red P can be obtained form white P by

Question # 24

Baking powder has which one of the following formula

Question # 25

Heavy water is obtained by

Question # 26

Which salt is used for preserving food

Question # 27

NaHCO3is prepared by

Question # 28

The electrolytic cell used for the production of metallic sodium is known as

Question # 29

Sulphuric acid reacts with PCl5to give

Question # 30

Permonosulphuric acid is known as

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Carbonates of alkali metals dissolves freely in water to form
A. Acidic solutions
B. Neutral solution
C. Alkaline solution
D. None of these
2 Which of the following compound is industrially prepared by the electrolysis of solution of NaCl
A. Na2CO3
B. NaHCO3
C. NaOH
D. NaOCl
3 The number of electron that are paired in oxygen molecule are
A. 16
B. 12
C. 14
D. 7
4 Lithium reacts with air to form
A. Peroxide
B. Normal oxide
C. Superoxide
D. None of these
5 The acid used in lead storage cells is
A. Phosphoric acid
B. Nitric acid
C. Sulphuric acid
D. Hydrochloric acid
6 Which of the following fluorides does not exists?
A. NF5
B. PF5
C. AsF5
D. SbF5
7 Which metal of Group-II A of the periodic Table, will form the least ionic chloride
A. Be
B. Mg
C. Ca
D. Sr
8 Permonosulphuric acid is known as
A. Marshall's acid
B. Carlo's acid
C. Sulphuric acid
D. None of these
9 The metal with highest electrical resistance at room temperature is
A. Pb
B. Te
C. Po
D. Fe
10 ______ is used in breathing equipments for mountaineers and in space craft
A. Li2O
B. BeO
C. N2
D. KO2

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