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 compound of noble gas xenon can be prepared?

Question # 2

Smell of halogen is

Question # 3

The most reactive elements are:

Question # 4

Gaseous HF exists in the form of

Question # 5

Colour of fluorine gas is

Question # 6

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

Question # 7

Hydrogen bond is the strongest between the molecules of

Question # 8

Radioactive element in halogens is

Question # 9

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

Question # 10

Astatine belongs to group

Question # 11

Corrosion proof parts of machinery are prepared from

Question # 12

The strongest hydrogen bond is in

Question # 13

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

Question # 14

Perchloric acid can be stored in solution form

Question # 15

Colour of Iodine is

Question # 16

Which is used as cooling medium in nuclear reactors?

Question # 17

I2O5is used for quantitative study of

Question # 18

Bleaching powder is agent:

Question # 19

Angle is OF2is

Question # 20

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

Question # 21

Non sticking coating in cooking utensils is done by

Question # 22

Half life of most stable isotope of astatine is

Question # 23

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

Question # 24

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

Question # 25

Which is used in bacterial lamps

Question # 26

The only non-metal in liquid form is

Question # 27

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

Question # 28

Noble gases are placed in group

Question # 29

The compound with cyclic hexamer is

Question # 30

The most reactive elements are

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ECAT Chemistry Chapter 16 Important MCQ's

Sr.# Question Answer
1 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
2 Molecule of halogens exist as
A. Monatomic
B. Diatomic
C. Triatomi
D. Polyatomic
3 Which is the strongest acid?
A. HClO
B. HClO2
C. HClO3
D. HClO4
4 Angle is OF2is
A. 1200
B. 1800
C. 1050
D. 1020
5 Bleaching powder is prepared by the reaction of Cl2 with.
A. Lime stone
B. Lime water
C. slaked lime
D. Lime
6 Non sticking coating in cooking utensils is done by
A. Iron
B. Cooper
C. Plastic
D. Teflon
7 Gaseous HF exists in the form of
A. Monomers
B. Cyclic hexames
C. As single entity
D. Both (a) and (b)
8 Which of the following hydrogen halide is the weakest acid in solution
A. HF
B. HBr
C. HI
D. HCl
9 The only non-metal in liquid form is
A. S
B. Cl
C. Br
D. P
10 The most reactive elements are:
A. Group IV-A
B. Group V-A
C. Group VI-A
D. Group VII -A

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