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

00:00
Question # 1

The most reactive elements are:

Question # 2

Which halogen occurs naturally in a positive oxidation state?

Question # 3

The strongest hydrogen bond is in

Question # 4

Non sticking coating in cooking utensils is done by

Question # 5

Second most element in the universe is

Question # 6

Bleaching powder is prepared by the reaction of Cl2 with.

Question # 7

Bleaching powder is agent:

Question # 8

Angle is OF2is

Question # 9

Halogens are called

Question # 10

The compound with cyclic hexamer is

Question # 11

Hydrogen bond is the strongest between the molecules of

Question # 12

Halogens are called.

Question # 13

Molecule of halogens exist as

Question # 14

Noble gases in the atmosphere are

Question # 15

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

Question # 16

I2O5is used for quantitative study of

Question # 17

Radioactive element in halogens is

Question # 18

Half life of most stable isotope of astatine is

Question # 19

Noble gases are placed in group

Question # 20

Smell of halogen is

Question # 21

Which compound of noble gas xenon can be prepared?

Question # 22

The most reactive elements are

Question # 23

The strongest acid is

Question # 24

The only non-metal in liquid form is

Question # 25

Which is the strongest acid?

Question # 26

Chlorine heptoxide (Cl2O7) reacts with water to form

Question # 27

The available chlorine is bleaching power is

Question # 28

Chlorin heptoxide reacts with water to form:

Question # 29

Astatine belongs to group

Question # 30

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?

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ECAT Chemistry Chapter 16 Important MCQ's

Sr.# Question Answer
1 Which is volatile liquid?
A. HF
B. HCl
C. HBr
D. Hl
2 Hydrogen bond is the strongest between the molecules of:
A. HF
B. HCl
C. HBr
D. Hl
3 Which is present as a result of radioactive decay on earth?
A. He
B. Ne
C. Ar
D. Kr
4 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
5 Non sticking coating in cooking utensils is done by
A. Iron
B. Cooper
C. Plastic
D. Teflon
6 Gaseous HF exists in the form of
A. Monomers
B. Cyclic hexames
C. As single entity
D. Both (a) and (b)
7 Which has complete valence shell?
A. C
B. N
C. O
D. Ne
8 Oxidation state of fluorine is:
A. +1
B. +2
C. -1
D. -2
9 Which is used as cooling medium in nuclear reactors?
A. He
B. Ne
C. Ar
D. Kr
10 Which halogen has maximum Van-der Waal's forces?
A. F2
B. Cl2
C. Br2
D. I2

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