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

Astatine belongs to group:

Question # 2

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

Question # 3

I2O5is used for quantitative study of

Question # 4

Which has complete valence shell?

Question # 5

Noble gases are placed in group

Question # 6

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 # 7

Halogens are called

Question # 8

Half life period of astatine is

Question # 9

Smell of halogens is:

Question # 10

Hydrogen bond is the strongest between the molecules of:

Question # 11

Which is used in arc welding and cutting?

Question # 12

Noble gases in the atmosphere are

Question # 13

Colour of Iodine is

Question # 14

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

Question # 15

Colour of bromine is

Question # 16

Which halogen has Iustrous shining?

Question # 17

Perchloric acid can be stored in solution form

Question # 18

Which has the least oxidizing power?

Question # 19

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

Question # 20

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

Question # 21

The compound with cyclic hexamer is

Question # 22

The noble gases are

Question # 23

Bleaching powder may be produced by passing chlorine over

Question # 24

Gaseous HF exists in the form of

Question # 25

Smell of halogen is

Question # 26

Which is used as cooling medium in nuclear reactors?

Question # 27

The most reactive elements are

Question # 28

Half life of most stable isotope of astatine is

Question # 29

Oxidation state of fluorine is

Question # 30

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

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ECAT Chapter 16 Important MCQ's

Sr.# Question Answer
1 Which is used in bacterial lamps
A. He
B. Ne
C. Ar
D. Kr
2 Noble gases are placed in group
A. Group IV-A
B. Group V-A
C. Group VI-A
D. Group VII-A
3 Noble gases in the atmosphere are
A. 4%
B. 3%
C. 2%
D. 1%
4 Half life period of astatine is
A. 8.1 hrs
B. 8.2 Hrs
C. 8.3 hrs
D. 8.4 hrs
5 Which is the strongest acid?
A. HClO
B. HClO2
C. HClO3
D. HClO4
6 Nobel gases are placed group:
A. Group IV-A
B. Group V-A
C. Group VI-A
D. Group VII-A
7 Oxidation state of fluorine is
A. +1
B. +2
C. -1
D. -2
8 Non sticking coating in cooking utensils is done by
A. Iron
B. Cooper
C. Plastic
D. Teflon
9 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
10 Used in tooth pastes is
A. Fluorides
B. Iodides
C. halides
D. nitrides

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