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

Question # 2

Which is volatile liquid?

Question # 3

The compound with cyclic hexamer is

Question # 4

Oxidation state of fluorine is:

Question # 5

Half life period of astatine is

Question # 6

Halogens are called.

Question # 7

Radioactive element in halogens is

Question # 8

Which has the least oxidizing power?

Question # 9

Smell of halogen is

Question # 10

The strongest acid is

Question # 11

Hydrogen bond is the strongest between the molecules of

Question # 12

A property which differs fluorine from the other halogens?

Question # 13

Bleaching powder is prepared by the reaction of Cl2 with.

Question # 14

Used in tooth pastes is

Question # 15

Half life of most stable isotope of astatine is

Question # 16

Colour of chlorine is

Question # 17

Molecule of halogens exist as

Question # 18

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

Question # 19

Bleaching powder may be produced by passing chlorine over

Question # 20

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

Question # 21

Oxidation state of fluorine is

Question # 22

Noble gases in the atmosphere are

Question # 23

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

Question # 24

Bleaching powder is agent:

Question # 25

Astatine belongs to group:

Question # 26

Colour of bromine is

Question # 27

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

Question # 28

Chlorine heptoxide (Cl2O7) reacts with water to form

Question # 29

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 # 30

Colour of Iodine is

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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 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
3 Which has the least oxidizing power?
A. F2
B. Cl2
C. Br2
D. I2
4 The noble gases are
A. Mono atomio
B. Diatomic
C. Polyatomic
D. All
5 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
6 Radioactive element in halogens is
A. Astatine
B. bromine
C. Iodine
D. Fluorine
7 Halogens are called
A. Salt former
B. Light bearing
C. Copper forming
D. none of these
8 Which noble gas is used in mixture used for breathing by divers?
A. Cl2
B. NH3
C. CO2
D. He
9 Which of the following hydrogen halide is the weakest acid in solution?
A. HF
B. HBr
C. Hl
D. HCl
10 Non sticking coating in cooking utensils is done by
A. Iron
B. Cooper
C. Plastic
D. Teflon

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