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

Which one of the following equations represent the reaction that occurs when calcium nitrate is heated strongly

Question # 2

Which of the following sulphates is not soluble in water

Question # 3

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

Question # 4

The alkaline earth elements have in their s-orbital

Question # 5

Which of the following is not the reactions of lithium

Question # 6

What is the formula of asbestos?

Question # 7

Which has soapy touch?

Question # 8

Hypo is used in photography for

Question # 9

Which element form group 15 gives most basic compound with hydrogen?

Question # 10

The structure of white phosphorus is

Question # 11

Chile saltpetre has the chemical formula

Question # 12

Red P can be obtained form white P by

Question # 13

Which will have the maximum value of heat of hydration

Question # 14

Sodium should be stored in

Question # 15

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

Question # 16

Which of the following oxides is peroxide?

Question # 17

Baking powder has which one of the following formula

Question # 18

Which carbonate of alkali metals is insoluble in water

Question # 19

Calcium carbide reacts with water to produce

Question # 20

Sodium is manufacture by the electrolysis of fused sodium chloride and not from an aqueous solution of sodium chloride because

Question # 21

The element caesium bears resemblance with

Question # 22

Which of the following is acidic?

Question # 23

Group VA of the periodic table consists of the elements N, P, As, Sb and Bi, On passing from N to Bi, the oxides of the elements of general formula M2O3become

Question # 24

Which one of the following is not an alkali metal

Question # 25

Where lime is not used

Question # 26

HNO2acts as an/a

Question # 27

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

Question # 28

The metal with highest electrical resistance at room temperature is

Question # 29

The formula of lime stone is

Question # 30

What causes nitrogen to be chemically inert?

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Electron affinity of sulphur is
A. More than O and Se
B. More than O but less than Se
C. Less than O but more than Se
D. Equal to O and Se
2 Which of the following are electropositive in nature
A. Alkali metals
B. Alkaline earth metals
C. Halogens
D. Alkali and alkaline earth metals
3 The formula of lime stone is
A. CaCl2
B. MgCO3
C. Na2CO3
D. CaCO3
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 Tincal is a mineral of:
A. Al
B. B
C. Si
D. C
6 The number of electron that are paired in oxygen molecule are
A. 16
B. 12
C. 14
D. 7
7 In the earth crust sodium is
A. 2.50%
B. 2.30%
C. 2.40%
D. 3.50%
8 The structure of white phosphorus is
A. Square planar
B. Pyramidal
C. Tetrahedral
D. Trigonal planer
9 Which of the following sulphates is not soluble in water
A. Sodium sulphate
B. Potassium sulphate
C. Zinc sulphate
D. Barium sulphate
10 Which is litharge or massicot?
A. PbO
B. Pb2O
C. Pb3O4
D. PbO2

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