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

The most reactive elements are

Question # 2

Which is used as cooling medium in nuclear reactors?

Question # 3

Astatine belongs to group

Question # 4

Noble gases are placed in group

Question # 5

Colour of chlorine is

Question # 6

Hydrogen bond is the strongest between the molecules of

Question # 7

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

Question # 8

Chlorin heptoxide reacts with water to form:

Question # 9

the anhydride of HCIO4is

Question # 10

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 # 11

I2O5is used for quantitative study of

Question # 12

Colour of Iodine is

Question # 13

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

Question # 14

Bleaching powder is prepared by the reaction of Cl2 with.

Question # 15

Nobel gases are placed group:

Question # 16

The noble gases are

Question # 17

Gaseous HF exists in the form of

Question # 18

Chlorine heptoxide (Cl2O7) reacts with water to form

Question # 19

The only non-metal in liquid form is

Question # 20

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

Question # 21

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

Question # 22

Oxidation state of fluorine is:

Question # 23

Smell of halogen is

Question # 24

Which compound of noble gas xenon can be prepared?

Question # 25

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

Question # 26

Bleaching powder may be produced by passing chlorine over

Question # 27

A property which differs fluorine from the other halogens?

Question # 28

Which is volatile liquid?

Question # 29

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

Question # 30

Corrosion proof parts of machinery are prepared from

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ECAT Chemistry Chapter 16 Important MCQ's

Sr.# Question Answer
1 The most reactive elements are:
A. Group IV-A
B. Group V-A
C. Group VI-A
D. Group VII -A
2 Noble gases in the atmosphere are
A. 4%
B. 3%
C. 2%
D. 1%
3 The strongest hydrogen bond is in
A. HF
B. HCl
C. HBr
D. Hl
4 Radioactive element in halogens is
A. Astatine
B. bromine
C. Iodine
D. Fluorine
5 Astatine belongs to group
A. I-A
B. II-A
C. III-A
D. VII-A
6 Bleaching powder is agent:
A. Dehydrating
B. Oxidazing
C. reducing
D. all
7 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
8 Oxidation state of fluorine is
A. +1
B. +2
C. -1
D. -2
9 Which halogen will react spontaneously with Au(s)to produce Au3++
A. Br2
B. F2
C. I2
D. Cl2
10 The available chlorine is bleaching power is
A. 25-30%
B. 30-35%
C. 35-40%
D. 40-45%

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