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 halogen is

Question # 3

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 # 4

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

Question # 5

Colour of Iodine is

Question # 6

Which is volatile liquid?

Question # 7

The noble gases are

Question # 8

The most reactive elements are:

Question # 9

Which has the least oxidizing power?

Question # 10

The strongest acid is

Question # 11

The only non-metal in liquid form is

Question # 12

Smell of halogens is:

Question # 13

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

Question # 14

Angle is OF2is

Question # 15

Second most element in the universe is

Question # 16

Hydrogen bond is the strongest between the molecules of

Question # 17

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

Question # 18

Nobel gases are placed group:

Question # 19

Halogens are called.

Question # 20

Colour of fluorine gas is

Question # 21

Which is used in arc welding and cutting?

Question # 22

Perchloric acid can be stored in solution form

Question # 23

A property which differs fluorine from the other halogens?

Question # 24

Astatine belongs to group:

Question # 25

Molecule of halogens exist as

Question # 26

Half life of most stable isotope of astatine is

Question # 27

Astatine belongs to group

Question # 28

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

Question # 29

Half life period of astatine is

Question # 30

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

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ECAT Chemistry Chapter 16 Important MCQ's

Sr.# Question Answer
1 Which compound of noble gas xenon can be prepared?
A. Oxides
B. Fluoride
C. Oxyfluorides
D. All of these
2 Which is present as a result of radioactive decay on earth?
A. He
B. Ne
C. Ar
D. Kr
3 Colour of Iodine is
A. Pale yellow
B. Greenish yellow
C. Red brown
D. Greyish black
4 Colour of fluorine gas is
A. Pale yellow
B. Greenish yellow
C. Red brown
D. greyish black
5 The strongest hydrogen bond is in
A. HF
B. HCl
C. HBr
D. Hl
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 Bleaching powder is agent:
A. Dehydrating
B. Oxidazing
C. reducing
D. all
8 Non sticking coating in cooking utensils is done by
A. Iron
B. Cooper
C. Plastic
D. Teflon
9 Corrosion proof parts of machinery are prepared from
A. Iron
B. Copper
C. Plastic
D. Teflon
10 Chlorin heptoxide reacts with water to form:
A. Hypochlorous acid
B. Chloric acid
C. Perchloric acid
D. Chlorine and oxygen

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