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

Sodium forms largely

Question # 2

Corrundam is ore of:

Question # 3

Phosphide ion has the electronic structure similar to that of

Question # 4

Which of the following is lighter

Question # 5

Sodium should be stored in

Question # 6

Some of the elements of a period show similar behavior with the elements of next group in next period this is called

Question # 7

Oleum is

Question # 8

Which is not the form of silica?

Question # 9

Which metal of Group-II A of the periodic Table, will form the least ionic chloride

Question # 10

Plaster of pares is obtained by heating

Question # 11

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

Question # 12

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

Question # 13

Aluminium oxide is:

Question # 14

Down's cell is used to prepare

Question # 15

NaHCO3is commonly called

Question # 16

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

Question # 17

The formula of lime stone is

Question # 18

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

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 will have the maximum value of heat of hydration

Question # 22

What causes nitrogen to be chemically inert?

Question # 23

The acid used in lead storage cells is

Question # 24

Alkaline earth metals are usually

Question # 25

Lime, calcium oxide, is used in agriculture for

Question # 26

When ammonia is heated with cupric oxide, a molecule of ammonia will

Question # 27

The chemical formula of gypsum is

Question # 28

When SO2is passed through acidified K2Cr2O7solution

Question # 29

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

Question # 30

The alkali metals form

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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 Potassium superoxide has a use in breathing equipment in space crafts. The balanced equation for the reaction is
3 White P when boiled with strong solution of caustic soda produces
A. Phosphine
B. Posh acid
C. Phosphorous acid
D. None
4 The chemical formula of chile salt peter is
A. Na2CO3
B. KNO3
C. NaNO3
D. NaNO2
5 ______ is used in breathing equipments for mountaineers and in space craft
A. Li2O
B. BeO
C. N2
D. KO2
6 All the following decompose easily on heating to give oxygen except
A. Lead nitrate
B. Potassium chlorate
C. Mercuric oxide
D. Manganese dioxide
7 Which of the following compounds is explosive in nature?
A. Phosphorus trichloride
B. Nitrogen trichloride
C. Hyponitrous acid
D. Nitrosyl chloride
8 Which property is not present in Al?
A. Reacts with acid
B. Reacts with bases
C. Changes litmus paper
D. Changes methyle orange colour
9 Which salt is used for preserving food
A. BaCl2
B. CaCl2
C. NaCl
D. Na2SO4
10 Al is the most element in earth crust:
A. O
B. Si
C. Al
D. Pb

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