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

Gaseous HF exists in the form of

Question # 2

Smell of halogen is

Question # 3

I2O5is used for quantitative study of

Question # 4

Bleaching powder may be produced by passing chlorine over

Question # 5

Which is used in arc welding and cutting?

Question # 6

Hydrogen bond is the strongest between the molecules of

Question # 7

Half life of most stable isotope of astatine is

Question # 8

Radioactive element in halogens is

Question # 9

Which halogen occurs naturally in a positive oxidation state?

Question # 10

Hydrogen bond is the strongest between the molecules of:

Question # 11

Oxidation state of fluorine is:

Question # 12

Which is used as cooling medium in nuclear reactors?

Question # 13

The only non-metal in liquid form is

Question # 14

Halogens are called.

Question # 15

Molecule of halogens exist as

Question # 16

Which halogen has Iustrous shining?

Question # 17

Colour of Iodine is

Question # 18

Non sticking coating in cooking utensils is done by

Question # 19

Perchloric acid can be stored in solution form

Question # 20

Which compound of noble gas xenon can be prepared?

Question # 21

Astatine belongs to group:

Question # 22

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

Question # 23

The strongest hydrogen bond is in

Question # 24

Gaseous HF exists in the form of

Question # 25

Noble gases are placed in group

Question # 26

Which is volatile liquid?

Question # 27

Bleaching powder is prepared by the reaction of Cl2 with.

Question # 28

Half life period of astatine is

Question # 29

Which has the least oxidizing power?

Question # 30

Nobel gases are placed group:

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ECAT Chemistry Chapter 16 Important MCQ's

Sr.# Question Answer
1 Which is the strongest acid?
A. HClO
B. HClO2
C. HClO3
D. HClO4
2 Which compound of noble gas xenon can be prepared?
A. Oxides
B. Fluoride
C. Oxyfluorides
D. All of these
3 Half life period of astatine is
A. 8.1 hrs
B. 8.2 Hrs
C. 8.3 hrs
D. 8.4 hrs
4 Colour of fluorine gas is
A. Pale yellow
B. Greenish yellow
C. Red brown
D. greyish black
5 Which halogen occurs naturally in a positive oxidation state?
A. Fluorine
B. Chlorine
C. Bromine
D. Iodine
6 Which noble gas is used in mixture used for breathing by divers?
A. Cl2
B. NH3
C. CO2
D. He
7 Noble gases are placed in group
A. Group IV-A
B. Group V-A
C. Group VI-A
D. Group VII-A
8 Which halogen will react spontaneously with Au(s)to produce Au3++
A. Br2
B. F2
C. I2
D. Cl2
9 Bleaching powder is agent:
A. Dehydrating
B. Oxidazing
C. reducing
D. all
10 Perchloric acid can be stored in solution form
A. 47%
B. 57%
C. 67%
D. 77%

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