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

Question # 2

Bleaching powder is prepared by the reaction of Cl2 with.

Question # 3

The only non-metal in liquid form is

Question # 4

Halogens are called.

Question # 5

Which is used as cooling medium in nuclear reactors?

Question # 6

Which compound of noble gas xenon can be prepared?

Question # 7

Used in tooth pastes is

Question # 8

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

Question # 9

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 # 10

The most reactive elements are

Question # 11

Colour of Iodine is

Question # 12

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

Question # 13

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

Question # 14

Noble gases are placed in group

Question # 15

The noble gases are

Question # 16

The available chlorine is bleaching power is

Question # 17

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

Question # 18

Which is the strongest acid?

Question # 19

Hydrogen bond is the strongest between the molecules of

Question # 20

Astatine belongs to group:

Question # 21

Which is used in arc welding and cutting?

Question # 22

Bleaching powder is agent:

Question # 23

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

Question # 24

Which is volatile liquid?

Question # 25

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

Question # 26

the anhydride of HCIO4is

Question # 27

Which has complete valence shell?

Question # 28

Halogens are called

Question # 29

Which is used in bacterial lamps

Question # 30

Radioactive element in halogens is

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ECAT Chemistry Chapter 16 Important MCQ's

Sr.# Question Answer
1 Noble gases in the atmosphere are
A. 4%
B. 3%
C. 2%
D. 1%
2 Astatine belongs to group:
A. I-A
B. II-A
C. III-A
D. VII-A
3 Angle is OF2is
A. 1200
B. 1800
C. 1050
D. 1020
4 Which is used in bacterial lamps
A. He
B. Ne
C. Ar
D. Kr
5 Half life of most stable isotope of astatine is
A. 8.0 hrs
B. 8.1 hrs
C. 8.2 hrs
D. 8.3 hrs
6 The available chlorine is bleaching power is
A. 25-30%
B. 30-35%
C. 35-40%
D. 40-45%
7 Radioactive element in halogens is
A. Astatine
B. bromine
C. Iodine
D. Fluorine
8 Corrosion proof parts of machinery are prepared from
A. Iron
B. Copper
C. Plastic
D. Teflon
9 Bleaching powder is agent:
A. Dehydrating
B. Oxidazing
C. reducing
D. all
10 The compound with cyclic hexamer is
A. HF
B. HCl
C. HBr
D. HI

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