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

Smell of halogen is

Question # 2

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

Question # 3

Colour of fluorine gas is

Question # 4

Which is volatile liquid?

Question # 5

Gaseous HF exists in the form of

Question # 6

Half life of most stable isotope of astatine is

Question # 7

The most reactive elements are:

Question # 8

Which halogen has Iustrous shining?

Question # 9

Which has complete valence shell?

Question # 10

Which of the following represents the correct electronic configuration of the outermost energy level of an element of zero (VIIA) group in the ground state?

Question # 11

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

Question # 12

Second most element in the universe is

Question # 13

Bleaching powder is agent:

Question # 14

Bleaching powder may be produced by passing chlorine over

Question # 15

Colour of Iodine is

Question # 16

Gaseous HF exists in the form of

Question # 17

Which has the least oxidizing power?

Question # 18

Which halogen occurs naturally in a positive oxidation state?

Question # 19

Halogens are called.

Question # 20

A property which differs fluorine from the other halogens?

Question # 21

Radioactive element in halogens is

Question # 22

Noble gases in the atmosphere are

Question # 23

Angle is OF2is

Question # 24

the anhydride of HCIO4is

Question # 25

Which is used in bacterial lamps

Question # 26

The available chlorine is bleaching power is

Question # 27

Hydrogen bond is the strongest between the molecules of

Question # 28

Astatine belongs to group:

Question # 29

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

Question # 30

Astatine belongs to group

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ECAT Chemistry Chapter 16 Important MCQ's

Sr.# Question Answer
1 Which of the following represents the correct electronic configuration of the outermost energy level of an element of zero (VIIA) group in the ground state?
A. s2p2
B. s2p4
C. s2p5
D. s2p6
2 Smell of halogen is
A. Fruity
B. Sweet
C. Irritating
D. Rotten egg
3 Which is volatile liquid?
A. HF
B. HCl
C. HBr
D. Hl
4 Angle is OF2is
A. 1200
B. 1800
C. 1050
D. 1020
5 Which of the following hydrogen halide is the weakest acid in solution?
A. HF
B. HBr
C. Hl
D. HCl
6 Which has complete valence shell?
A. C
B. N
C. O
D. Ne
7 The only non-metal in liquid form is
A. S
B. Cl
C. Br
D. P
8 Which is the strongest acid?
A. HClO
B. HClO2
C. HClO3
D. HClO4
9 Halogens are called
A. Salt former
B. Light bearing
C. Copper forming
D. none of these
10 Second most element in the universe is
A. He
B. Ne
C. Ar
D. Kr

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