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

00:00
Question # 1

Chlorine heptoxide (Cl2O7) reacts with water to form

Question # 2

Oxidation state of fluorine is:

Question # 3

Astatine belongs to group

Question # 4

Bleaching powder is agent:

Question # 5

Noble gases are placed in group

Question # 6

The strongest hydrogen bond is in

Question # 7

Colour of bromine is

Question # 8

Hydrogen bond is the strongest between the molecules of

Question # 9

Colour of chlorine is

Question # 10

Which is volatile liquid?

Question # 11

Which compound of noble gas xenon can be prepared?

Question # 12

Gaseous HF exists in the form of

Question # 13

A property which differs fluorine from the other halogens?

Question # 14

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

Question # 15

Oxidation state of fluorine is

Question # 16

The only non-metal in liquid form is

Question # 17

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

Question # 18

Hydrogen bond is the strongest between the molecules of:

Question # 19

Radioactive element in halogens is

Question # 20

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

Question # 21

The noble gases are

Question # 22

Which has the least oxidizing power?

Question # 23

The compound with cyclic hexamer is

Question # 24

Smell of halogen is

Question # 25

Astatine belongs to group:

Question # 26

Colour of Iodine is

Question # 27

Noble gases in the atmosphere are

Question # 28

Non sticking coating in cooking utensils is done by

Question # 29

Half life of most stable isotope of astatine is

Question # 30

Which halogen has maximum Van-der Waal's forces?

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ECAT Chemistry Chapter 16 Important MCQ's

Sr.# Question Answer
1 Which has the least oxidizing power?
A. F2
B. Cl2
C. Br2
D. I2
2 Hydrogen bond is the strongest between the molecules of
A. HF
B. HCl
C. HBr
D. HI
3 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
4 Molecule of halogens exist as
A. Monatomic
B. Diatomic
C. Triatomi
D. Polyatomic
5 Second most element in the universe is
A. He
B. Ne
C. Ar
D. Kr
6 Half life period of astatine is
A. 8.1 hrs
B. 8.2 Hrs
C. 8.3 hrs
D. 8.4 hrs
7 Colour of fluorine gas is
A. Pale yellow
B. Greenish yellow
C. Red brown
D. greyish black
8 Chlorin heptoxide reacts with water to form:
A. Hypochlorous acid
B. Chloric acid
C. Perchloric acid
D. Chlorine and oxygen
9 The strongest acid is
A. HF
B. HCl
C. HBr
D. HI
10 Which is the strongest acid?
A. HClO
B. HClO2
C. HClO3
D. HClO4

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