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

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

Question # 2

Which of the following elements is not present abundantly in earth's crust?

Question # 3

Which electronic configuration corresponds to an element of Group ||Z-A of the periodic table?

Question # 4

Which of the following salt is soluble in water

Question # 5

______ is called milk of magnesia

Question # 6

The element which has a simple cubic lattice in solid state is

Question # 7

______ gives peroxide

Question # 8

Each of the following is true of white and red phosphours except that they

Question # 9

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

Question # 10

The oxide of beryllium is

Question # 11

All the following decompose easily on heating to give oxygen except

Question # 12

Basicity of orthoposphoric acid is

Question # 13

Tincal is a mineral of:

Question # 14

The alkaline earth elements have in their s-orbital

Question # 15

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

Question # 16

Which of the element is not an alkaline earth metal

Question # 17

Sodium should be stored in

Question # 18

Which of the following has highest dipole moment?

Question # 19

Identify the incorrect statement with respect to ozone

Question # 20

What is going to replace the petroleum?

Question # 21

Which carbonate of alkali metals is insoluble in water

Question # 22

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

Question # 23

Which on of the following compounds does not exist?

Question # 24

The chemical formula of gypsum is

Question # 25

The alkali metals form

Question # 26

Which of the following compounds is explosive in nature?

Question # 27

Calcium carbide reacts with water to produce

Question # 28

The formula of lime stone is

Question # 29

Chemical composition of colemnite is:

Question # 30

Borax is a common mineral of alkali metal sodium. Its formula is

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Heavy water is obtained by
A. Prolonged electrolysis of water
B. Dissolving heavy salt in water
C. Simple distillation of water
D. Removing impurities of calcium and magnesium form water
2 ______ is used in breathing equipments for mountaineers and in space craft
A. Li2O
B. BeO
C. N2
D. KO2
3 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
A. Stronger reducing agents
B. More ionic
C. More basic
D. More volatile
4 ______ gives peroxide
A. Li
B. Ba
C. Sr
D. Be
5 Which of the following is formed by the action of water on sodium peroxide?
A. H2
B. N2
C. O2
D. CO2
6 What is chrome yellow?
A. Pbo
B. Pb2O
C. PbCrO4
D. Pb3O4
7 Which metal is used in the thermit process because of its activity?
A. Iron
B. Copper
C. Alumnium
D. Zinc
8 Which one of the following does not belong to alkaline earth metals
A. Be
B. Ra
C. Ba
D. Rn
9 When a colourless gas is passed through bromine water only decolourisation takes place the gas is
A. SO2
B. HBR
C. HCl
D. H2S
10 Which is used in navigational equipments?
A. B
B. Be
C. Mg
D. Al

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