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

White P when boiled with strong solution of caustic soda produces

Question # 2

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

Question # 3

Down's cell is used to prepare

Question # 4

Plaster of pares is obtained by heating

Question # 5

Which element has highest oxidation potential

Question # 6

Which of the following oxides is peroxide?

Question # 7

Sodium should be stored in

Question # 8

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

Question # 9

Al is the most element in earth crust:

Question # 10

The structure of white phosphorus is

Question # 11

Chile saltpetre has the chemical formula

Question # 12

Which of the following is lighter

Question # 13

Which is used in navigational equipments?

Question # 14

Basicity of orthoposphoric acid is

Question # 15

Lithium reacts with air to form

Question # 16

Which of the following is not the reactions of lithium

Question # 17

Baking powder has which one of the following formula

Question # 18

Electron affinity of sulphur is

Question # 19

Permonosulphuric acid is known as

Question # 20

Ozone is not

Question # 21

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

Question # 22

Which of the following is a tetrabasic acid?

Question # 23

The chemical formula of Epson salt is

Question # 24

Which of the following is formed by the action of water on sodium peroxide?

Question # 25

Which salt is used for the treatment of hyperacidity in stomach

Question # 26

The number of electron that are paired in oxygen molecule are

Question # 27

The alkali metals form

Question # 28

What is chrome yellow?

Question # 29

Which of the following salt is soluble in water

Question # 30

The ore CaSO42H2O has the general name

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 The alkaline earth elements have in their s-orbital
A. One electron
B. Two electron
C. No electron
D. Three electron
2 ______ reacts with alkalis to give hydrogen
A. Be
B. Mg
C. Ca
D. None
3 Which element form group 15 gives most basic compound with hydrogen?
A. Nitrogen
B. Bismuth
C. Arsenic
D. Phosphorus
4 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
5 Which of the following has highest dipole moment?
A. NH3
B. PH3
C. AsH3
D. SbH3
6 Basicity of orthoposphoric acid is
A. 2
B. 3
C. 4
D. 5
7 Which of the element is not alkali metal
A. Lithium
B. Rubidium
C. Francium
D. Magnesium
8 Which is litharge or massicot?
A. PbO
B. Pb2O
C. Pb3O4
D. PbO2
9 Calcium carbide reacts with water to produce
A. Acetylene
B. Methane
C. Ethylene
D. Ethane
10 The most acidic of the following compounds is
A. P2O3
B. Sb2O3
C. B2O3
D. As2O3

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