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

Non sticking coating in cooking utensils is done by

Question # 2

Which has the least oxidizing power?

Question # 3

Corrosion proof parts of machinery are prepared from

Question # 4

Colour of chlorine is

Question # 5

Used in tooth pastes is

Question # 6

Angle is OF2is

Question # 7

The only non-metal in liquid form is

Question # 8

Bleaching powder is prepared by the reaction of Cl2 with.

Question # 9

Gaseous HF exists in the form of

Question # 10

Which halogen occurs naturally in a positive oxidation state?

Question # 11

The compound with cyclic hexamer is

Question # 12

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 # 13

The most reactive elements are:

Question # 14

Noble gases in the atmosphere are

Question # 15

I2O5is used for quantitative study of

Question # 16

Halogens are called.

Question # 17

Molecule of halogens exist as

Question # 18

Second most element in the universe is

Question # 19

Colour of Iodine is

Question # 20

Nobel gases are placed group:

Question # 21

Which is used in bacterial lamps

Question # 22

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

Question # 23

The most reactive elements are

Question # 24

Bleaching powder is agent:

Question # 25

Which has complete valence shell?

Question # 26

Colour of bromine is

Question # 27

The strongest acid is

Question # 28

Bleaching powder may be produced by passing chlorine over

Question # 29

Perchloric acid can be stored in solution form

Question # 30

The available chlorine is bleaching power is

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ECAT Chemistry Chapter 16 Important MCQ's

Sr.# Question Answer
1 I2O5is used for quantitative study of
A. CO2
B. NO2
C. NO
D. CO
2 Bleaching powder is agent:
A. Dehydrating
B. Oxidazing
C. reducing
D. all
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. Hl
5 Which has complete valence shell?
A. C
B. N
C. O
D. Ne
6 Bleaching powder is prepared by the reaction of Cl2 with.
A. Lime stone
B. Lime water
C. slaked lime
D. Lime
7 Smell of halogen is
A. Fruity
B. Sweet
C. Irritating
D. Rotten egg
8 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
9 Which is present as a result of radioactive decay on earth?
A. He
B. Ne
C. Ar
D. Kr
10 Which of the following hydrogen halide is the weakest acid in solution?
A. HF
B. HBr
C. Hl
D. HCl

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