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

00:00
Question # 1

Which oxide of nitrogen is obtained on heating ammonium nitrate at 250° C?

Question # 2

Which has soapy touch?

Question # 3

CaC2on hydrolysis form

Question # 4

Aluminium oxide is:

Question # 5

Copper oxide is dedected by borax bead test with colour:

Question # 6

Heavy water is obtained by

Question # 7

Lithium reacts with air to form

Question # 8

Hybridized in oxygen is:

Question # 9

Which carbonate of alkali metals is insoluble in water

Question # 10

Borax is hydrated:

Question # 11

Sometimes a yellow turbidity appears while passing H2S gas even in the absence of II group radicals. This is because

Question # 12

Permonosulphuric acid is known as

Question # 13

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

Question # 14

Electron affinity of sulphur is

Question # 15

P2O5is heated with water to give

Question # 16

______ is used in breathing equipments for mountaineers and in space craft

Question # 17

All the elements of oxygen family are

Question # 18

A compound used as eye wash:

Question # 19

Chief ore of aluminium is:

Question # 20

LiOH ______ soluble than NaOH

Question # 21

BiCl3on hydrolysis forms a white precipitate of

Question # 22

Tincal is a mineral of:

Question # 23

Corrundam is ore of:

Question # 24

Which of the following element is most reactive

Question # 25

Which of the following are electropositive in nature

Question # 26

When SO2is passed through acidified K2Cr2O7solution

Question # 27

Gypsum is applied to the soil to provide calcium and

Question # 28

Which is used in navigational equipments?

Question # 29

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

Question # 30

Which salt is used for the treatment of hyperacidity in stomach

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Sodium is never found free in nature because of its
A. Chemical reactivity
B. Small ionic size
C. Small atomic volume
D. None of these
2 The structure of white phosphorus is
A. Square planar
B. Pyramidal
C. Tetrahedral
D. Trigonal planer
3 Which of the following is not the reactions of lithium
4 Sulphuric acid has great affinity for water because
A. It hydrolyses the acid
B. It decomposes the acid
C. Acid forms hydrates with water
D. Acid decomposes water
5 Which metal is used in the thermit process because of its activity?
A. Iron
B. Copper
C. Alumnium
D. Zinc
6 Which element form group 15 gives most basic compound with hydrogen?
A. Nitrogen
B. Bismuth
C. Arsenic
D. Phosphorus
7 Which will have the maximum value of heat of hydration
A. Na+
B. Cs+
C. Ba+2
D. Mg+2
8 Which of all following compound is not possible
9 Orthophosphoric acid is
A. Monobasic
B. Dibasic
C. Tribasic
D. Tetrabasic
10 Basicity of orthoposphoric acid is
A. 2
B. 3
C. 4
D. 5

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