ECAT Pre Engineering Chemistry Chapter 16 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 16 The Halogens and The Noble Gases

Try The MCQ's Test For ECAT Chemistry Chapter 16 The Halogens and The Noble Gases

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ECAT Chemistry Chapter 16 The Halogens and The Noble Gases

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Question # 1

Which compound of noble gas xenon can be prepared?

Question # 2

Astatine belongs to group:

Question # 3

Oxidation state of fluorine is

Question # 4

Angle is OF2is

Question # 5

Halogens are called.

Question # 6

Which noble gas is used in mixture used for breathing by divers?

Question # 7

Half life period of astatine is

Question # 8

Which of the following hydrogen halide is the weakest acid in solution?

Question # 9

Which has complete valence shell?

Question # 10

Colour of bromine is

Question # 11

Which has the least oxidizing power?

Question # 12

Used in tooth pastes is

Question # 13

Chlorin heptoxide reacts with water to form:

Question # 14

Which is used in bacterial lamps

Question # 15

Chlorine heptoxide (Cl2O7) reacts with water to form

Question # 16

Oxidation state of fluorine is:

Question # 17

The most reactive elements are

Question # 18

Gaseous HF exists in the form of

Question # 19

Gaseous HF exists in the form of

Question # 20

Colour of Iodine is

Question # 21

Which is present as a result of radioactive decay on earth?

Question # 22

Noble gases in the atmosphere are

Question # 23

Hydrogen bond is the strongest between the molecules of

Question # 24

Colour of fluorine gas is

Question # 25

Which halogen has Iustrous shining?

Question # 26

Second most element in the universe is

Question # 27

Hydrogen bond is the strongest between the molecules of:

Question # 28

the anhydride of HCIO4is

Question # 29

Which is used as cooling medium in nuclear reactors?

Question # 30

Halogens are called

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ECAT Chemistry Chapter 16 Important MCQ's

Sr.# Question Answer
1 the anhydride of HCIO4is
A. CIO3
B. ClO2
C. Cl2O5
D. Cl2O7
2 Which of the following hydrogen halide is the weakest acid in solution
A. HF
B. HBr
C. HI
D. HCl
3 Smell of halogen is
A. Fruity
B. Sweet
C. Irritating
D. Rotten egg
4 Second most element in the universe is
A. He
B. Ne
C. Ar
D. Kr
5 Which noble gas is used in mixture used for breathing by divers?
A. Cl2
B. NH3
C. CO2
D. He
6 Bleaching powder is prepared by the reaction of Cl2 with.
A. Lime stone
B. Lime water
C. slaked lime
D. Lime
7 Colour of Iodine is
A. Pale yellow
B. Greenish yellow
C. Red brown
D. Greyish black
8 Molecule of halogens exist as
A. Monatomic
B. Diatomic
C. Triatomi
D. Polyatomic
9 Bleaching powder is agent:
A. Dehydrating
B. Oxidazing
C. reducing
D. all
10 Which halogen has Iustrous shining?
A. F2
B. Cl2
C. Br2
D. I2

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