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

00:00
Question # 1

Chlorin heptoxide reacts with water to form:

Question # 2

Astatine belongs to group:

Question # 3

Noble gases are placed in group

Question # 4

Colour of chlorine is

Question # 5

Colour of bromine is

Question # 6

Bleaching powder is agent:

Question # 7

Halogens are called

Question # 8

Which is volatile liquid?

Question # 9

Colour of Iodine is

Question # 10

Which has the least oxidizing power?

Question # 11

The most reactive elements are

Question # 12

Gaseous HF exists in the form of

Question # 13

The compound with cyclic hexamer is

Question # 14

The only non-metal in liquid form is

Question # 15

Molecule of halogens exist as

Question # 16

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

Question # 17

Oxidation state of fluorine is

Question # 18

Gaseous HF exists in the form of

Question # 19

Noble gases in the atmosphere are

Question # 20

A property which differs fluorine from the other halogens?

Question # 21

Hydrogen bond is the strongest between the molecules of:

Question # 22

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

Question # 23

Which has complete valence shell?

Question # 24

Astatine belongs to group

Question # 25

Used in tooth pastes is

Question # 26

The strongest hydrogen bond is in

Question # 27

Oxidation state of fluorine is:

Question # 28

Which is used in bacterial lamps

Question # 29

Which is used in arc welding and cutting?

Question # 30

I2O5is used for quantitative study of

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ECAT Chemistry Chapter 16 Important MCQ's

Sr.# Question Answer
1 Bleaching powder is agent:
A. Dehydrating
B. Oxidazing
C. reducing
D. all
2 The noble gases are
A. Mono atomio
B. Diatomic
C. Polyatomic
D. All
3 Angle is OF2is
A. 1200
B. 1800
C. 1050
D. 1020
4 Which is present as a result of radioactive decay on earth?
A. He
B. Ne
C. Ar
D. Kr
5 Colour of fluorine gas is
A. Pale yellow
B. Greenish yellow
C. Red brown
D. greyish black
6 Chlorin heptoxide reacts with water to form:
A. Hypochlorous acid
B. Chloric acid
C. Perchloric acid
D. Chlorine and oxygen
7 Hydrogen bond is the strongest between the molecules of:
A. HF
B. HCl
C. HBr
D. Hl
8 Half life period of astatine is
A. 8.1 hrs
B. 8.2 Hrs
C. 8.3 hrs
D. 8.4 hrs
9 Colour of Iodine is
A. Pale yellow
B. Greenish yellow
C. Red brown
D. Greyish black
10 Which halogen has Iustrous shining?
A. F2
B. Cl2
C. Br2
D. I2

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