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

Halogens are called.

Question # 2

Which is volatile liquid?

Question # 3

The strongest hydrogen bond is in

Question # 4

Bleaching powder is prepared by the reaction of Cl2 with.

Question # 5

The most reactive elements are:

Question # 6

Which compound of noble gas xenon can be prepared?

Question # 7

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

Question # 8

Hydrogen bond is the strongest between the molecules of

Question # 9

Smell of halogens is:

Question # 10

Which is used in arc welding and cutting?

Question # 11

Which has complete valence shell?

Question # 12

Colour of Iodine is

Question # 13

Oxidation state of fluorine is

Question # 14

Oxidation state of fluorine is:

Question # 15

Halogens are called

Question # 16

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

Question # 17

Hydrogen bond is the strongest between the molecules of:

Question # 18

Which halogen has Iustrous shining?

Question # 19

Which halogen occurs naturally in a positive oxidation state?

Question # 20

The compound with cyclic hexamer is

Question # 21

Gaseous HF exists in the form of

Question # 22

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

Question # 23

Half life of most stable isotope of astatine is

Question # 24

Molecule of halogens exist as

Question # 25

The strongest acid is

Question # 26

A property which differs fluorine from the other halogens?

Question # 27

Gaseous HF exists in the form of

Question # 28

Smell of halogen is

Question # 29

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

Question # 30

Chlorine heptoxide (Cl2O7) reacts with water to form

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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 Halogens are called.
A. salt former
B. Light bearing
C. copper forming
D. None of these
3 Astatine belongs to group:
A. I-A
B. II-A
C. III-A
D. VII-A
4 The most reactive elements are:
A. Group IV-A
B. Group V-A
C. Group VI-A
D. Group VII -A
5 The compound with cyclic hexamer is
A. HF
B. HCl
C. HBr
D. HI
6 Which is used in bacterial lamps
A. He
B. Ne
C. Ar
D. Kr
7 Which is used in arc welding and cutting?
A. He
B. Ne
C. Ar
D. Kr
8 Radioactive element in halogens is
A. Astatine
B. bromine
C. Iodine
D. Fluorine
9 An element that has a high ionization energy and tends to be chemically inactive would most likely to be
A. an alkali metal
B. a transition element
C. a noble gas
D. a halogen
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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