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

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

Question # 2

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 # 3

Gaseous HF exists in the form of

Question # 4

The compound with cyclic hexamer is

Question # 5

Colour of chlorine is

Question # 6

Noble gases are placed in group

Question # 7

The available chlorine is bleaching power is

Question # 8

Non sticking coating in cooking utensils is done by

Question # 9

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

Question # 10

Which is volatile liquid?

Question # 11

Which has the least oxidizing power?

Question # 12

Noble gases in the atmosphere are

Question # 13

Which compound of noble gas xenon can be prepared?

Question # 14

Half life period of astatine is

Question # 15

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

Question # 16

The only non-metal in liquid form is

Question # 17

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

Question # 18

Which is used in arc welding and cutting?

Question # 19

Half life of most stable isotope of astatine is

Question # 20

Bleaching powder is agent:

Question # 21

Bleaching powder is prepared by the reaction of Cl2 with.

Question # 22

Which halogen occurs naturally in a positive oxidation state?

Question # 23

The strongest hydrogen bond is in

Question # 24

Smell of halogens is:

Question # 25

A property which differs fluorine from the other halogens?

Question # 26

Chlorine heptoxide (Cl2O7) reacts with water to form

Question # 27

Hydrogen bond is the strongest between the molecules of

Question # 28

I2O5is used for quantitative study of

Question # 29

Which is the strongest acid?

Question # 30

Astatine belongs to group:

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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 Gaseous HF exists in the form of
A. Monomers
B. Cyclic hexamers
C. As single entity
D. Both a and b
3 Which is used in bacterial lamps
A. He
B. Ne
C. Ar
D. Kr
4 Smell of halogen is
A. Fruity
B. Sweet
C. Irritating
D. Rotten egg
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 Nobel gases are placed group:
A. Group IV-A
B. Group V-A
C. Group VI-A
D. Group VII-A
7 Smell of halogens is:
A. Fruity
B. Sweet
C. Irritating
D. Rotten egg
8 Which halogen has maximum Van-der Waal's forces?
A. F2
B. Cl2
C. Br2
D. I2
9 An element that has a high ionization energy and tends to be chemically inactive would most likely to be:
A. an alkali metal
B. a transition element
C. a noble gas
D. a halogen
10 Which is used as cooling medium in nuclear reactors?
A. He
B. Ne
C. Ar
D. Kr

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