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

The most reactive elements are

Question # 2

The available chlorine is bleaching power is

Question # 3

Which halogen occurs naturally in a positive oxidation state?

Question # 4

Which has the least oxidizing power?

Question # 5

Halogens are called.

Question # 6

The compound with cyclic hexamer is

Question # 7

Which is used in bacterial lamps

Question # 8

Molecule of halogens exist as

Question # 9

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

Question # 10

Which halogen will react spontaneously with Au(s)to produce Au3++

Question # 11

Bleaching powder is agent:

Question # 12

Which is used as cooling medium in nuclear reactors?

Question # 13

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

Question # 14

Which compound of noble gas xenon can be prepared?

Question # 15

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

Question # 16

Oxidation state of fluorine is:

Question # 17

Which has complete valence shell?

Question # 18

Half life period of astatine is

Question # 19

Radioactive element in halogens is

Question # 20

Non sticking coating in cooking utensils is done by

Question # 21

Colour of chlorine is

Question # 22

Astatine belongs to group

Question # 23

The strongest acid is

Question # 24

Which halogen has Iustrous shining?

Question # 25

Angle is OF2is

Question # 26

Chlorine heptoxide (Cl2O7) reacts with water to form

Question # 27

Hydrogen bond is the strongest between the molecules of

Question # 28

The only non-metal in liquid form is

Question # 29

Bleaching powder may be produced by passing chlorine over

Question # 30

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?

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ECAT Chemistry Chapter 16 Important MCQ's

Sr.# Question Answer
1 Angle is OF2is
A. 1200
B. 1800
C. 1050
D. 1020
2 Bleaching powder may be produced by passing chlorine over
A. Calcium carbonate
B. Hydrated calcium sulphate
C. Anhydrous calcium sulphate
D. Calcium hydroxide
3 Colour of fluorine gas is
A. Pale yellow
B. Greenish yellow
C. Red brown
D. greyish black
4 Nobel gases are placed group:
A. Group IV-A
B. Group V-A
C. Group VI-A
D. Group VII-A
5 The available chlorine is bleaching power is
A. 25-30%
B. 30-35%
C. 35-40%
D. 40-45%
6 Halogens are called
A. Salt former
B. Light bearing
C. Copper forming
D. none of these
7 Noble gases are placed in group
A. Group IV-A
B. Group V-A
C. Group VI-A
D. Group VII-A
8 Hydrogen bond is the strongest between the molecules of
A. HF
B. HCl
C. HBr
D. HI
9 Which is present as a result of radioactive decay on earth?
A. He
B. Ne
C. Ar
D. Kr
10 The strongest acid is
A. HF
B. HCl
C. HBr
D. HI

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