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

Astatine belongs to group:

Question # 3

Halogens are called.

Question # 4

Colour of fluorine gas is

Question # 5

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

Question # 6

Which is used in bacterial lamps

Question # 7

Smell of halogens is:

Question # 8

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

Question # 9

Non sticking coating in cooking utensils is done by

Question # 10

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

Question # 11

Gaseous HF exists in the form of

Question # 12

Molecule of halogens exist as

Question # 13

Oxidation state of fluorine is

Question # 14

Which is the strongest acid?

Question # 15

Angle is OF2is

Question # 16

The available chlorine is bleaching power is

Question # 17

Radioactive element in halogens is

Question # 18

Corrosion proof parts of machinery are prepared from

Question # 19

The only non-metal in liquid form is

Question # 20

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

Question # 21

Which is used as cooling medium in nuclear reactors?

Question # 22

Which has the least oxidizing power?

Question # 23

Which compound of noble gas xenon can be prepared?

Question # 24

Bleaching powder is prepared by the reaction of Cl2 with.

Question # 25

Hydrogen bond is the strongest between the molecules of

Question # 26

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

Question # 27

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

Question # 28

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 # 29

The strongest acid is

Question # 30

Colour of bromine is

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ECAT Chemistry Chapter 16 Important MCQ's

Sr.# Question Answer
1 Colour of Iodine is
A. Pale yellow
B. Greenish yellow
C. Red brown
D. Greyish black
2 Halogens are called
A. Salt former
B. Light bearing
C. Copper forming
D. none of these
3 the anhydride of HCIO4is
A. CIO3
B. ClO2
C. Cl2O5
D. Cl2O7
4 Chlorine heptoxide (Cl2O7) reacts with water to form
A. Hypochlorous acid
B. chloric acid
C. Perchloric acid
D. Chlorine and Oxygen
5 The strongest acid is
A. HF
B. HCl
C. HBr
D. HI
6 Colour of bromine is
A. Pale yellow
B. Greenish yellow
C. Red brown
D. Greyish black
7 Which compound of noble gas xenon can be prepared?
A. Oxides
B. Fluoride
C. Oxyfluorides
D. All of these
8 Which is used in arc welding and cutting?
A. He
B. Ne
C. Ar
D. Kr
9 Bleaching powder is prepared by the reaction of Cl2 with.
A. Lime stone
B. Lime water
C. slaked lime
D. Lime
10 The compound with cyclic hexamer is
A. HF
B. HCl
C. HBr
D. HI

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