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 arc welding and cutting?

Question # 2

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

Question # 3

The strongest hydrogen bond is in

Question # 4

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

Question # 5

Which halogen occurs naturally in a positive oxidation state?

Question # 6

Which is used in bacterial lamps

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

Which compound of noble gas xenon can be prepared?

Question # 11

Which is volatile liquid?

Question # 12

Colour of chlorine is

Question # 13

the anhydride of HCIO4is

Question # 14

Oxidation state of fluorine is:

Question # 15

Chlorin heptoxide reacts with water to form:

Question # 16

Colour of Iodine is

Question # 17

A property which differs fluorine from the other halogens?

Question # 18

Noble gases are placed in group

Question # 19

Radioactive element in halogens is

Question # 20

Second most element in the universe is

Question # 21

Non sticking coating in cooking utensils is done by

Question # 22

Nobel gases are placed group:

Question # 23

I2O5is used for quantitative study of

Question # 24

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

Question # 25

Bleaching powder may be produced by passing chlorine over

Question # 26

Colour of bromine is

Question # 27

The available chlorine is bleaching power is

Question # 28

Which is used as cooling medium in nuclear reactors?

Question # 29

Gaseous HF exists in the form of

Question # 30

Colour of fluorine gas is

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ECAT Chemistry Chapter 16 Important MCQ's

Sr.# Question Answer
1 Oxidation state of fluorine is
A. +1
B. +2
C. -1
D. -2
2 Which has the least oxidizing power?
A. F2
B. Cl2
C. Br2
D. I2
3 Hydrogen bond is the strongest between the molecules of:
A. HF
B. HCl
C. HBr
D. Hl
4 Astatine belongs to group:
A. I-A
B. II-A
C. III-A
D. VII-A
5 Which compound of noble gas xenon can be prepared?
A. Oxides
B. Fluoride
C. Oxyfluorides
D. All of these
6 Noble gases in the atmosphere are
A. 4%
B. 3%
C. 2%
D. 1%
7 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
8 Colour of chlorine is
A. Pale yellow
B. Greenish yellow
C. Red brown
D. Greyish black
9 Colour of bromine is
A. Pale yellow
B. Greenish yellow
C. Red brown
D. Greyish black
10 Which of the following hydrogen halide is the weakest acid in solution?
A. HF
B. HBr
C. Hl
D. HCl

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