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

Question # 2

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

Question # 3

Which is the strongest acid?

Question # 4

Molecule of halogens exist as

Question # 5

A property which differs fluorine from the other halogens?

Question # 6

Colour of bromine is

Question # 7

Astatine belongs to group:

Question # 8

The compound with cyclic hexamer is

Question # 9

Chlorin heptoxide reacts with water to form:

Question # 10

Gaseous HF exists in the form of

Question # 11

Colour of Iodine is

Question # 12

Used in tooth pastes is

Question # 13

Which is volatile liquid?

Question # 14

Non sticking coating in cooking utensils is done by

Question # 15

Noble gases in the atmosphere are

Question # 16

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 # 17

Halogens are called.

Question # 18

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

Question # 19

The only non-metal in liquid form is

Question # 20

Angle is OF2is

Question # 21

Half life period of astatine is

Question # 22

Smell of halogens is:

Question # 23

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

Question # 24

Perchloric acid can be stored in solution form

Question # 25

Bleaching powder is prepared by the reaction of Cl2 with.

Question # 26

Which has complete valence shell?

Question # 27

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

Question # 28

Oxidation state of fluorine is

Question # 29

Oxidation state of fluorine is:

Question # 30

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

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ECAT Chemistry Chapter 16 Important MCQ's

Sr.# Question Answer
1 Nobel gases are placed group:
A. Group IV-A
B. Group V-A
C. Group VI-A
D. Group VII-A
2 I2O5is used for quantitative study of
A. CO2
B. NO2
C. NO
D. CO
3 Which halogen will react spontaneously with Au(s)to produce Au3++
A. Br2
B. F2
C. I2
D. Cl2
4 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
5 Colour of chlorine is
A. Pale yellow
B. Greenish yellow
C. Red brown
D. Greyish black
6 Which has complete valence shell?
A. C
B. N
C. O
D. Ne
7 Which has the least oxidizing power?
A. F2
B. Cl2
C. Br2
D. I2
8 Non sticking coating in cooking utensils is done by
A. Iron
B. Cooper
C. Plastic
D. Teflon
9 Which of the following hydrogen halide is the weakest acid in solution?
A. HF
B. HBr
C. Hl
D. HCl
10 Oxidation state of fluorine is:
A. +1
B. +2
C. -1
D. -2

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