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

Colour of chlorine is

Question # 2

Used in tooth pastes is

Question # 3

Smell of halogens is:

Question # 4

Halogens are called

Question # 5

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

Question # 6

Noble gases are placed in group

Question # 7

Molecule of halogens exist as

Question # 8

Perchloric acid can be stored in solution form

Question # 9

Which halogen has Iustrous shining?

Question # 10

Radioactive element in halogens is

Question # 11

Oxidation state of fluorine is

Question # 12

Colour of Iodine is

Question # 13

Colour of bromine is

Question # 14

The compound with cyclic hexamer is

Question # 15

Astatine belongs to group:

Question # 16

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

Question # 17

The only non-metal in liquid form is

Question # 18

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

Question # 19

Bleaching powder is prepared by the reaction of Cl2 with.

Question # 20

Halogens are called.

Question # 21

Smell of halogen is

Question # 22

Which is the strongest acid?

Question # 23

The strongest acid is

Question # 24

Astatine belongs to group

Question # 25

The most reactive elements are

Question # 26

Nobel gases are placed group:

Question # 27

Which has complete valence shell?

Question # 28

Second most element in the universe is

Question # 29

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

Question # 30

Colour of fluorine gas is

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ECAT Chemistry Chapter 16 Important MCQ's

Sr.# Question Answer
1 Which is used as cooling medium in nuclear reactors?
A. He
B. Ne
C. Ar
D. Kr
2 Smell of halogen is
A. Fruity
B. Sweet
C. Irritating
D. Rotten egg
3 Hydrogen bond is the strongest between the molecules of:
A. HF
B. HCl
C. HBr
D. Hl
4 Gaseous HF exists in the form of
A. Monomers
B. Cyclic hexamers
C. As single entity
D. Both a and b
5 Hydrogen bond is the strongest between the molecules of
A. HF
B. HCl
C. HBr
D. HI
6 Which has complete valence shell?
A. C
B. N
C. O
D. Ne
7 Which of the following hydrogen halide is the weakest acid in solution?
A. HF
B. HBr
C. Hl
D. HCl
8 A property which differs fluorine from the other halogens?
A. Direct combination with inert gases
B. Uninegative
C. Diatomic
D. ns2 , np5
9 The strongest acid is
A. HF
B. HCl
C. HBr
D. HI
10 Which is present as a result of radioactive decay on earth?
A. He
B. Ne
C. Ar
D. Kr

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