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

Noble gases in the atmosphere are

Question # 2

Halogens are called

Question # 3

Second most element in the universe is

Question # 4

Nobel gases are placed group:

Question # 5

Oxidation state of fluorine is

Question # 6

Angle is OF2is

Question # 7

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

Question # 8

Oxidation state of fluorine is:

Question # 9

Bleaching powder is prepared by the reaction of Cl2 with.

Question # 10

Which is the strongest acid?

Question # 11

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

Question # 12

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 # 13

Which is used as cooling medium in nuclear reactors?

Question # 14

Which halogen occurs naturally in a positive oxidation state?

Question # 15

I2O5is used for quantitative study of

Question # 16

The compound with cyclic hexamer is

Question # 17

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

Question # 18

Bleaching powder may be produced by passing chlorine over

Question # 19

Colour of chlorine is

Question # 20

Gaseous HF exists in the form of

Question # 21

Hydrogen bond is the strongest between the molecules of

Question # 22

Smell of halogens is:

Question # 23

Perchloric acid can be stored in solution form

Question # 24

Which compound of noble gas xenon can be prepared?

Question # 25

Chlorin heptoxide reacts with water to form:

Question # 26

Astatine belongs to group:

Question # 27

the anhydride of HCIO4is

Question # 28

The noble gases are

Question # 29

Which is used in bacterial lamps

Question # 30

Which is used in arc welding and cutting?

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ECAT Chemistry Chapter 16 Important MCQ's

Sr.# Question Answer
1 Molecule of halogens exist as
A. Monatomic
B. Diatomic
C. Triatomi
D. Polyatomic
2 Which is present as a result of radioactive decay on earth?
A. He
B. Ne
C. Ar
D. Kr
3 Which is volatile liquid?
A. HF
B. HCl
C. HBr
D. Hl
4 Second most element in the universe is
A. He
B. Ne
C. Ar
D. Kr
5 Nobel gases are placed group:
A. Group IV-A
B. Group V-A
C. Group VI-A
D. Group VII-A
6 Radioactive element in halogens is
A. Astatine
B. bromine
C. Iodine
D. Fluorine
7 Colour of bromine is
A. Pale yellow
B. Greenish yellow
C. Red brown
D. Greyish black
8 Non sticking coating in cooking utensils is done by
A. Iron
B. Cooper
C. Plastic
D. Teflon
9 Chlorine heptoxide (Cl2O7) reacts with water to form
A. Hypochlorous acid
B. chloric acid
C. Perchloric acid
D. Chlorine and Oxygen
10 Which is used in bacterial lamps
A. He
B. Ne
C. Ar
D. Kr

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