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

Smell of halogens is:

Question # 3

Colour of chlorine is

Question # 4

Colour of bromine is

Question # 5

Which is the strongest acid?

Question # 6

Which is volatile liquid?

Question # 7

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

Question # 8

Bleaching powder is agent:

Question # 9

Half life of most stable isotope of astatine is

Question # 10

Smell of halogen is

Question # 11

Noble gases are placed in group

Question # 12

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

Question # 13

Perchloric acid can be stored in solution form

Question # 14

Which is used as cooling medium in nuclear reactors?

Question # 15

Which has complete valence shell?

Question # 16

The most reactive elements are:

Question # 17

Molecule of halogens exist as

Question # 18

Halogens are called

Question # 19

Bleaching powder may be produced by passing chlorine over

Question # 20

Which is used in arc welding and cutting?

Question # 21

The strongest acid is

Question # 22

Astatine belongs to group

Question # 23

Which halogen has Iustrous shining?

Question # 24

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 # 25

Hydrogen bond is the strongest between the molecules of:

Question # 26

The available chlorine is bleaching power is

Question # 27

Chlorin heptoxide reacts with water to form:

Question # 28

Bleaching powder is prepared by the reaction of Cl2 with.

Question # 29

The most reactive elements are

Question # 30

Non sticking coating in cooking utensils is done by

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ECAT Chemistry Chapter 16 Important MCQ's

Sr.# Question Answer
1 Perchloric acid can be stored in solution form
A. 47%
B. 57%
C. 67%
D. 77%
2 Bleaching powder is prepared by the reaction of Cl2 with.
A. Lime stone
B. Lime water
C. slaked lime
D. Lime
3 Bleaching powder may be produced by passing chlorine over
A. Calcium carbonate
B. Hydrated calcium sulphate
C. Anhydrous calcium sulphate
D. Calcium hydroxide
4 Which of the following hydrogen halide is the weakest acid in solution
A. HF
B. HBr
C. HI
D. HCl
5 Noble gases in the atmosphere are
A. 4%
B. 3%
C. 2%
D. 1%
6 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
7 Angle is OF2is
A. 1200
B. 1800
C. 1050
D. 1020
8 Which halogen will react spontaneously with Au(s)to produce Au3++
A. Br2
B. F2
C. I2
D. Cl2
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 Gaseous HF exists in the form of
A. Monomers
B. Cyclic hexamers
C. As single entity
D. Both a and b

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