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

A property which differs fluorine from the other halogens?

Question # 2

An element that has a high ionization energy and tends to be chemically inactive would most likely to be:

Question # 3

Which is used as cooling medium in nuclear reactors?

Question # 4

Angle is OF2is

Question # 5

Hydrogen bond is the strongest between the molecules of

Question # 6

Bleaching powder is prepared by the reaction of Cl2 with.

Question # 7

Which halogen occurs naturally in a positive oxidation state?

Question # 8

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

Question # 9

Astatine belongs to group

Question # 10

The strongest acid is

Question # 11

Noble gases in the atmosphere are

Question # 12

The compound with cyclic hexamer is

Question # 13

Which is the strongest acid?

Question # 14

Second most element in the universe is

Question # 15

Hydrogen bond is the strongest between the molecules of:

Question # 16

Perchloric acid can be stored in solution form

Question # 17

Smell of halogens is:

Question # 18

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

Question # 19

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

Question # 20

Halogens are called

Question # 21

Astatine belongs to group:

Question # 22

Bleaching powder is agent:

Question # 23

An element that has a high ionization energy and tends to be chemically inactive would most likely to be

Question # 24

the anhydride of HCIO4is

Question # 25

Which has the least oxidizing power?

Question # 26

The only non-metal in liquid form is

Question # 27

Half life of most stable isotope of astatine is

Question # 28

Which halogen has maximum Van-der Waal's forces?

Question # 29

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

Question # 30

Which is used in bacterial lamps

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ECAT Chemistry Chapter 16 Important MCQ's

Sr.# Question Answer
1 Astatine belongs to group
A. I-A
B. II-A
C. III-A
D. VII-A
2 Colour of fluorine gas is
A. Pale yellow
B. Greenish yellow
C. Red brown
D. greyish black
3 Which is volatile liquid?
A. HF
B. HCl
C. HBr
D. Hl
4 Hydrogen bond is the strongest between the molecules of:
A. HF
B. HCl
C. HBr
D. Hl
5 Which has the least oxidizing power?
A. F2
B. Cl2
C. Br2
D. I2
6 The noble gases are
A. Mono atomio
B. Diatomic
C. Polyatomic
D. All
7 Chlorin heptoxide reacts with water to form:
A. Hypochlorous acid
B. Chloric acid
C. Perchloric acid
D. Chlorine and oxygen
8 Bleaching powder is prepared by the reaction of Cl2 with.
A. Lime stone
B. Lime water
C. slaked lime
D. Lime
9 Which is used as cooling medium in nuclear reactors?
A. He
B. Ne
C. Ar
D. Kr
10 Which halogen has maximum Van-der Waal's forces?
A. F2
B. Cl2
C. Br2
D. I2

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