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

Nobel gases are placed group:

Question # 2

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

Question # 3

Which is used in arc welding and cutting?

Question # 4

Colour of fluorine gas is

Question # 5

The compound with cyclic hexamer is

Question # 6

Bleaching powder may be produced by passing chlorine over

Question # 7

Oxidation state of fluorine is

Question # 8

Which is used as cooling medium in nuclear reactors?

Question # 9

Chlorin heptoxide reacts with water to form:

Question # 10

Colour of Iodine is

Question # 11

Which compound of noble gas xenon can be prepared?

Question # 12

Gaseous HF exists in the form of

Question # 13

Smell of halogen is

Question # 14

Second most element in the universe is

Question # 15

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

Question # 16

Molecule of halogens exist as

Question # 17

The most reactive elements are

Question # 18

Bleaching powder is prepared by the reaction of Cl2 with.

Question # 19

Half life period of astatine is

Question # 20

Which has the least oxidizing power?

Question # 21

The strongest hydrogen bond is in

Question # 22

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

Question # 23

Non sticking coating in cooking utensils is done by

Question # 24

the anhydride of HCIO4is

Question # 25

The available chlorine is bleaching power is

Question # 26

Perchloric acid can be stored in solution form

Question # 27

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 # 28

Astatine belongs to group:

Question # 29

Astatine belongs to group

Question # 30

Angle is OF2is

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ECAT Chemistry Chapter 16 Important MCQ's

Sr.# Question Answer
1 Noble gases are placed in group
A. Group IV-A
B. Group V-A
C. Group VI-A
D. Group VII-A
2 Which is used in arc welding and cutting?
A. He
B. Ne
C. Ar
D. Kr
3 Which of the following hydrogen halide is the weakest acid in solution
A. HF
B. HBr
C. HI
D. HCl
4 Chlorin heptoxide reacts with water to form:
A. Hypochlorous acid
B. Chloric acid
C. Perchloric acid
D. Chlorine and oxygen
5 Which halogen occurs naturally in a positive oxidation state?
A. Fluorine
B. Chlorine
C. Bromine
D. Iodine
6 The compound with cyclic hexamer is
A. HF
B. HCl
C. HBr
D. HI
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 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
9 Halogens are called
A. Salt former
B. Light bearing
C. Copper forming
D. none of these
10 Corrosion proof parts of machinery are prepared from
A. Iron
B. Copper
C. Plastic
D. Teflon

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