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

00:00
Question # 1

Smell of halogens is:

Question # 2

Bleaching powder is agent:

Question # 3

Which halogen has Iustrous shining?

Question # 4

The most reactive elements are:

Question # 5

Noble gases in the atmosphere are

Question # 6

The available chlorine is bleaching power is

Question # 7

Which compound of noble gas xenon can be prepared?

Question # 8

Which is used in arc welding and cutting?

Question # 9

Which has complete valence shell?

Question # 10

The only non-metal in liquid form is

Question # 11

the anhydride of HCIO4is

Question # 12

A property which differs fluorine from the other halogens?

Question # 13

Bleaching powder may be produced by passing chlorine over

Question # 14

Oxidation state of fluorine is:

Question # 15

Corrosion proof parts of machinery are prepared from

Question # 16

Half life period of astatine is

Question # 17

Oxidation state of fluorine is

Question # 18

Which has the least oxidizing power?

Question # 19

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

Question # 20

Astatine belongs to group

Question # 21

Molecule of halogens exist as

Question # 22

Astatine belongs to group:

Question # 23

Smell of halogen is

Question # 24

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

Question # 25

The most reactive elements are

Question # 26

Colour of fluorine gas is

Question # 27

Hydrogen bond is the strongest between the molecules of:

Question # 28

Halogens are called

Question # 29

Which is volatile liquid?

Question # 30

Which halogen occurs naturally in a positive oxidation 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 Half life of most stable isotope of astatine is
A. 8.0 hrs
B. 8.1 hrs
C. 8.2 hrs
D. 8.3 hrs
3 Which halogen occurs naturally in a positive oxidation state?
A. Fluorine
B. Chlorine
C. Bromine
D. Iodine
4 Hydrogen bond is the strongest between the molecules of
A. HF
B. HCl
C. HBr
D. HI
5 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
6 I2O5is used for quantitative study of
A. CO2
B. NO2
C. NO
D. CO
7 Smell of halogens is:
A. Fruity
B. Sweet
C. Irritating
D. Rotten egg
8 Which halogen will react spontaneously with Au(s)to produce Au3++
A. Br2
B. F2
C. I2
D. Cl2
9 The strongest hydrogen bond is in
A. HF
B. HCl
C. HBr
D. Hl
10 The available chlorine is bleaching power is
A. 25-30%
B. 30-35%
C. 35-40%
D. 40-45%

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