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

Nobel gases are placed group:

Question # 3

Hydrogen bond is the strongest between the molecules of

Question # 4

The strongest acid is

Question # 5

Used in tooth pastes is

Question # 6

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

Question # 7

Which is used in bacterial lamps

Question # 8

Halogens are called

Question # 9

The noble gases are

Question # 10

Gaseous HF exists in the form of

Question # 11

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

Question # 12

I2O5is used for quantitative study of

Question # 13

Smell of halogen is

Question # 14

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

Question # 15

The strongest hydrogen bond is in

Question # 16

Hydrogen bond is the strongest between the molecules of:

Question # 17

Noble gases in the atmosphere are

Question # 18

The compound with cyclic hexamer is

Question # 19

Which halogen occurs naturally in a positive oxidation state?

Question # 20

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

Question # 21

Smell of halogens is:

Question # 22

The only non-metal in liquid form is

Question # 23

Astatine belongs to group

Question # 24

Perchloric acid can be stored in solution form

Question # 25

Gaseous HF exists in the form of

Question # 26

Colour of chlorine is

Question # 27

Colour of Iodine is

Question # 28

Noble gases are placed in group

Question # 29

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

Question # 30

The most reactive elements are

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ECAT Chemistry Chapter 16 Important MCQ's

Sr.# Question Answer
1 Non sticking coating in cooking utensils is done by
A. Iron
B. Cooper
C. Plastic
D. Teflon
2 Smell of halogens is:
A. Fruity
B. Sweet
C. Irritating
D. Rotten egg
3 Chlorin heptoxide reacts with water to form:
A. Hypochlorous acid
B. Chloric acid
C. Perchloric acid
D. Chlorine and oxygen
4 Which noble gas is used in mixture used for breathing by divers?
A. Cl2
B. NH3
C. CO2
D. He
5 Colour of fluorine gas is
A. Pale yellow
B. Greenish yellow
C. Red brown
D. greyish black
6 Nobel gases are placed group:
A. Group IV-A
B. Group V-A
C. Group VI-A
D. Group VII-A
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 Corrosion proof parts of machinery are prepared from
A. Iron
B. Copper
C. Plastic
D. Teflon
9 The most reactive elements are:
A. Group IV-A
B. Group V-A
C. Group VI-A
D. Group VII -A
10 Astatine belongs to group
A. I-A
B. II-A
C. III-A
D. VII-A

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