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

Noble gases in the atmosphere are

Question # 2

Colour of fluorine gas is

Question # 3

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

Question # 4

Astatine belongs to group

Question # 5

Bleaching powder may be produced by passing chlorine over

Question # 6

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

Question # 7

Molecule of halogens exist as

Question # 8

The available chlorine is bleaching power is

Question # 9

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

Question # 10

Halogens are called

Question # 11

Chlorin heptoxide reacts with water to form:

Question # 12

Non sticking coating in cooking utensils is done by

Question # 13

Bleaching powder is prepared by the reaction of Cl2 with.

Question # 14

Which is used in arc welding and cutting?

Question # 15

Noble gases are placed in group

Question # 16

The noble gases are

Question # 17

Half life period of astatine is

Question # 18

Corrosion proof parts of machinery are prepared from

Question # 19

The strongest acid is

Question # 20

Which halogen occurs naturally in a positive oxidation state?

Question # 21

I2O5is used for quantitative study of

Question # 22

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

Question # 23

A property which differs fluorine from the other halogens?

Question # 24

The compound with cyclic hexamer is

Question # 25

Gaseous HF exists in the form of

Question # 26

Hydrogen bond is the strongest between the molecules of

Question # 27

the anhydride of HCIO4is

Question # 28

Smell of halogen is

Question # 29

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

Question # 30

Radioactive element in halogens 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 The strongest acid is
A. HF
B. HCl
C. HBr
D. HI
3 Which halogen will react spontaneously with Au(s)to produce Au3++
A. Br2
B. F2
C. I2
D. Cl2
4 Which is volatile liquid?
A. HF
B. HCl
C. HBr
D. Hl
5 Which is the strongest acid?
A. HClO
B. HClO2
C. HClO3
D. HClO4
6 The most reactive elements are:
A. Group IV-A
B. Group V-A
C. Group VI-A
D. Group VII -A
7 Which is present as a result of radioactive decay on earth?
A. He
B. Ne
C. Ar
D. Kr
8 The compound with cyclic hexamer is
A. HF
B. HCl
C. HBr
D. HI
9 Which has the least oxidizing power?
A. F2
B. Cl2
C. Br2
D. I2
10 Colour of bromine is
A. Pale yellow
B. Greenish yellow
C. Red brown
D. Greyish black

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