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 halogen has maximum Van-der Waal's forces?

Question # 2

The compound with cyclic hexamer is

Question # 3

the anhydride of HCIO4is

Question # 4

Bleaching powder may be produced by passing chlorine over

Question # 5

Which has the least oxidizing power?

Question # 6

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

Question # 7

Oxidation state of fluorine is

Question # 8

Radioactive element in halogens is

Question # 9

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

Question # 10

Astatine belongs to group:

Question # 11

The strongest acid is

Question # 12

Noble gases are placed in group

Question # 13

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 # 14

Halogens are called

Question # 15

Gaseous HF exists in the form of

Question # 16

Bleaching powder is prepared by the reaction of Cl2 with.

Question # 17

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

Question # 18

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

Question # 19

Non sticking coating in cooking utensils is done by

Question # 20

Chlorin heptoxide reacts with water to form:

Question # 21

Bleaching powder is agent:

Question # 22

Chlorine heptoxide (Cl2O7) reacts with water to form

Question # 23

I2O5is used for quantitative study of

Question # 24

Halogens are called.

Question # 25

Smell of halogens is:

Question # 26

The strongest hydrogen bond is in

Question # 27

Gaseous HF exists in the form of

Question # 28

Colour of chlorine is

Question # 29

Which is used in bacterial lamps

Question # 30

Which is used in arc welding and cutting?

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ECAT Chemistry Chapter 16 Important MCQ's

Sr.# Question Answer
1 Astatine belongs to group:
A. I-A
B. II-A
C. III-A
D. VII-A
2 Smell of halogens is:
A. Fruity
B. Sweet
C. Irritating
D. Rotten egg
3 Astatine belongs to group
A. I-A
B. II-A
C. III-A
D. VII-A
4 Which of the following hydrogen halide is the weakest acid in solution?
A. HF
B. HBr
C. Hl
D. HCl
5 Bleaching powder is prepared by the reaction of Cl2 with.
A. Lime stone
B. Lime water
C. slaked lime
D. Lime
6 Gaseous HF exists in the form of
A. Monomers
B. Cyclic hexamers
C. As single entity
D. Both a and b
7 A property which differs fluorine from the other halogens?
A. Direct combination with inert gases
B. Uninegative
C. Diatomic
D. ns2 , np5
8 Which has the least oxidizing power?
A. F2
B. Cl2
C. Br2
D. I2
9 Half life period of astatine is
A. 8.1 hrs
B. 8.2 Hrs
C. 8.3 hrs
D. 8.4 hrs
10 The compound with cyclic hexamer is
A. HF
B. HCl
C. HBr
D. HI

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