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

Question # 2

When sulphur is boiled with Na2SO3solution, the compound formed is

Question # 3

Hypo is used in photography for

Question # 4

Bond angle is minimum for

Question # 5

Plaster of pares is obtained by heating

Question # 6

Phosphine is not obtained by the reaction when

Question # 7

Tincal is a mineral of:

Question # 8

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

Question # 9

The most acidic of the following compounds is

Question # 10

HNO2acts as an/a

Question # 11

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

Question # 12

Which of the following are electropositive in nature

Question # 13

The metal with highest electrical resistance at room temperature is

Question # 14

Which is litharge or massicot?

Question # 15

Phosphorus pentoxide finds use as

Question # 16

Pb has inert pair of electrons:

Question # 17

Phosphide ion has the electronic structure similar to that of

Question # 18

Sulphuric acid has great affinity for water because

Question # 19

______ reacts with alkalis to give hydrogen

Question # 20

Sodium forms largely

Question # 21

Hybridized in carbon is:

Question # 22

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

Question # 23

Sodium is never found free in nature because of its

Question # 24

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

Question # 25

Down's cell is used to prepare

Question # 26

Which of the following salt is used as purgative

Question # 27

Which one of the following properties is not correct for ozone?

Question # 28

Which of the following is not the reactions of lithium

Question # 29

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

Question # 30

Which of the following is lighter

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Which carbonate of alkali metals is insoluble in water
A. Na2CO3
B. K2CO3
C. Li2CO3
D. Cs2CO3
2 Boric acid cannot be used:
A. An antiseptic in medicine
B. For washing eyes
C. In soda bottles
D. For enamels and glazes
3 Sodium should be stored in
A. Air free from moisture
B. Air free form carbon dioxide
C. Under water
D. Under kerosene oil
4 Which is not the form of silica?
A. Amethyst quatz
B. Rose quatz
C. Smoky
D. None of these
5 Gypsum is applied to the soil to provide calcium and
A. Oxygen
B. Nitrogen
C. Phosphorous
D. Sulphur
6 Which element forms an iron with charge 3+?
A. Berylium
B. Aluminium
C. Carbon
D. Silicon
7 Borax is a common mineral of alkali metal sodium. Its formula is
A. Na2B4O7
B. Na2,B4O7. 10H2O
C. Na2B3O6. 10H2O
D. Na2B4O7- 5H2O
8 Which salt is used for preserving food
A. BaCl2
B. CaCl2
C. NaCl
D. Na2SO4
9 The number of unpaired electrons in the p-subshell of oxygen atom
A. 1
B. 2
C. 3
D. 4
10 Sodium is manufacture by the electrolysis of fused sodium chloride and not from an aqueous solution of sodium chloride because
A. Sodium chloride does not ionize in the water solution
B. Sodium chloride is not soluble in water
C. Sodium deposited at the cathode may react with water to form sodium hydroxide
D. Electricity does not pass through aqueous NaCl

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