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

NaHCO3is prepared by

Question # 2

Which salt is used for the treatment of hyperacidity in stomach

Question # 3

______ gives peroxide

Question # 4

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

Question # 5

Which of the following is not the reactions of lithium

Question # 6

The number of unpaired electrons in the p-subshell of oxygen atom

Question # 7

Which of the following sulphates is not soluble in water

Question # 8

Al is the most element in earth crust:

Question # 9

The oxidation number of each element of group l-A is

Question # 10

Which of the following is a tetrabasic acid?

Question # 11

Phosphide ion has the electronic structure similar to that of

Question # 12

Aluminium oxide is:

Question # 13

Which of the following is the hardest metal among following

Question # 14

Orthophosphoric acid is

Question # 15

What causes nitrogen to be chemically inert?

Question # 16

Hypo is used in photography for

Question # 17

Which has soapy touch?

Question # 18

Alkaline earth metals posses two electrons in their outermost

Question # 19

The oxide of beryllium is

Question # 20

Pb has inert pair of electrons:

Question # 21

Down's cell is used to prepare

Question # 22

Silicon atom is hybridized:

Question # 23

Sulphuric acid reacts with PCl5to give

Question # 24

Lime, calcium oxide, is used in agriculture for

Question # 25

Sulphuric acid has great affinity for water because

Question # 26

Which is used in navigational equipments?

Question # 27

Which of the following are electropositive in nature

Question # 28

Which one of the following pentafluorides cannot be formed?

Question # 29

The chemical formula of magnesite is

Question # 30

On alkali and alkaline earth metals down the group, there is decreasing trend in

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Which of the following phosphorus is most reactive?
A. Red phosphorus
B. White phosphorus
C. Scrlet phosphorus
D. Violet phosphorous
2 Which of the following is not the reactions of lithium
3 Density of aluminium is (g cm-3):
A. B
B. Al
C. Si
D. Ge
4 Which of the following has highest dipole moment?
A. NH3
B. PH3
C. AsH3
D. SbH3
5 Boric acid cannot be used:
A. An antiseptic in medicine
B. For washing eyes
C. In soda bottles
D. For enamels and glazes
6 The ore CaSO42H2O has the general name
A. Gypsum
B. Dolomite
C. Calcite
D. Epsom salt
7 Which on of the following compounds does not exist?
A. NCl5
B. AsF5
C. SbCl5
D. PF5
8 Which one of the following equations represent the reaction that occurs when calcium nitrate is heated strongly
9 Which of the following salt is soluble in water
A. CaCO3
B. CaSO4
C. MgSO4
D. BaSO4
10 Which of the following sulphates is not soluble in water
A. Sodium sulphate
B. Potassium sulphate
C. Zinc sulphate
D. Barium sulphate

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