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

Which is used in bacterial lamps

Question # 2

The noble gases are

Question # 3

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

Question # 4

Chlorin heptoxide reacts with water to form:

Question # 5

Which is the strongest acid?

Question # 6

Non sticking coating in cooking utensils is done by

Question # 7

Which has the least oxidizing power?

Question # 8

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

Question # 9

Nobel gases are placed group:

Question # 10

Colour of bromine is

Question # 11

A property which differs fluorine from the other halogens?

Question # 12

Halogens are called.

Question # 13

Which compound of noble gas xenon can be prepared?

Question # 14

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

Question # 15

Molecule of halogens exist as

Question # 16

Chlorine heptoxide (Cl2O7) reacts with water to form

Question # 17

Astatine belongs to group:

Question # 18

The available chlorine is bleaching power is

Question # 19

Half life period of astatine is

Question # 20

Second most element in the universe is

Question # 21

Which is used in arc welding and cutting?

Question # 22

The only non-metal in liquid form is

Question # 23

Radioactive element in halogens is

Question # 24

Noble gases are placed in group

Question # 25

Which halogen occurs naturally in a positive oxidation state?

Question # 26

The strongest acid is

Question # 27

Gaseous HF exists in the form of

Question # 28

Colour of Iodine is

Question # 29

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

Question # 30

Astatine belongs to group

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ECAT Chemistry Chapter 16 Important MCQ's

Sr.# Question Answer
1 Which noble gas is used in mixture used for breathing by divers?
A. Cl2
B. NH3
C. CO2
D. He
2 Angle is OF2is
A. 1200
B. 1800
C. 1050
D. 1020
3 Which halogen will react spontaneously with Au(s)to produce Au3++
A. Br2
B. F2
C. I2
D. Cl2
4 Colour of chlorine is
A. Pale yellow
B. Greenish yellow
C. Red brown
D. Greyish black
5 Which compound of noble gas xenon can be prepared?
A. Oxides
B. Fluoride
C. Oxyfluorides
D. All of these
6 Which is used in arc welding and cutting?
A. He
B. Ne
C. Ar
D. Kr
7 Colour of fluorine gas is
A. Pale yellow
B. Greenish yellow
C. Red brown
D. greyish black
8 Bleaching powder is prepared by the reaction of Cl2 with.
A. Lime stone
B. Lime water
C. slaked lime
D. Lime
9 Bleaching powder may be produced by passing chlorine over
A. Calcium carbonate
B. Hydrated calcium sulphate
C. Anhydrous calcium sulphate
D. Calcium hydroxide
10 The noble gases are
A. Mono atomio
B. Diatomic
C. Polyatomic
D. All

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