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

Which is used as cooling medium in nuclear reactors?

Question # 2

Astatine belongs to group

Question # 3

Halogens are called

Question # 4

Halogens are called.

Question # 5

Colour of Iodine is

Question # 6

Which halogen occurs naturally in a positive oxidation state?

Question # 7

Half life period of astatine is

Question # 8

Bleaching powder is prepared by the reaction of Cl2 with.

Question # 9

The most reactive elements are

Question # 10

Nobel gases are placed group:

Question # 11

Which is used in arc welding and cutting?

Question # 12

Which halogen has Iustrous shining?

Question # 13

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 # 14

Molecule of halogens exist as

Question # 15

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

Question # 16

the anhydride of HCIO4is

Question # 17

Corrosion proof parts of machinery are prepared from

Question # 18

Colour of chlorine is

Question # 19

Half life of most stable isotope of astatine is

Question # 20

The strongest acid is

Question # 21

Chlorine heptoxide (Cl2O7) reacts with water to form

Question # 22

The noble gases are

Question # 23

Second most element in the universe is

Question # 24

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

Question # 25

Colour of bromine is

Question # 26

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

Question # 27

The available chlorine is bleaching power is

Question # 28

Chlorin heptoxide reacts with water to form:

Question # 29

Astatine belongs to group:

Question # 30

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

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ECAT Chemistry Chapter 16 Important MCQ's

Sr.# Question Answer
1 The only non-metal in liquid form is
A. S
B. Cl
C. Br
D. P
2 Radioactive element in halogens is
A. Astatine
B. bromine
C. Iodine
D. Fluorine
3 A property which differs fluorine from the other halogens?
A. Direct combination with inert gases
B. Uninegative
C. Diatomic
D. ns2 , np5
4 Which is used as cooling medium in nuclear reactors?
A. He
B. Ne
C. Ar
D. Kr
5 Corrosion proof parts of machinery are prepared from
A. Iron
B. Copper
C. Plastic
D. Teflon
6 The strongest hydrogen bond is in
A. HF
B. HCl
C. HBr
D. Hl
7 Non sticking coating in cooking utensils is done by
A. Iron
B. Cooper
C. Plastic
D. Teflon
8 Bleaching powder may be produced by passing chlorine over
A. Calcium carbonate
B. Hydrated calcium sulphate
C. Anhydrous calcium sulphate
D. Calcium hydroxide
9 Angle is OF2is
A. 1200
B. 1800
C. 1050
D. 1020
10 Chlorin heptoxide reacts with water to form:
A. Hypochlorous acid
B. Chloric acid
C. Perchloric acid
D. Chlorine and oxygen

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