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

Nobel gases are placed group:

Question # 2

Half life of most stable isotope of astatine is

Question # 3

Corrosion proof parts of machinery are prepared from

Question # 4

Oxidation state of fluorine is:

Question # 5

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

Question # 6

Used in tooth pastes is

Question # 7

Chlorine heptoxide (Cl2O7) reacts with water to form

Question # 8

Noble gases are placed in group

Question # 9

The most reactive elements are

Question # 10

Colour of Iodine is

Question # 11

Chlorin heptoxide reacts with water to form:

Question # 12

The available chlorine is bleaching power is

Question # 13

Molecule of halogens exist as

Question # 14

Astatine belongs to group:

Question # 15

Hydrogen bond is the strongest between the molecules of:

Question # 16

Halogens are called.

Question # 17

Astatine belongs to group

Question # 18

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 # 19

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

Question # 20

Which halogen has Iustrous shining?

Question # 21

Smell of halogen is

Question # 22

The only non-metal in liquid form is

Question # 23

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

Question # 24

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

Question # 25

The strongest hydrogen bond is in

Question # 26

Gaseous HF exists in the form of

Question # 27

Which is the strongest acid?

Question # 28

Perchloric acid can be stored in solution form

Question # 29

Smell of halogens is:

Question # 30

Bleaching powder may be produced by passing chlorine over

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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 Colour of fluorine gas is
A. Pale yellow
B. Greenish yellow
C. Red brown
D. greyish black
3 Which is volatile liquid?
A. HF
B. HCl
C. HBr
D. Hl
4 Which has the least oxidizing power?
A. F2
B. Cl2
C. Br2
D. I2
5 Used in tooth pastes is
A. Fluorides
B. Iodides
C. halides
D. nitrides
6 Which has complete valence shell?
A. C
B. N
C. O
D. Ne
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 is present as a result of radioactive decay on earth?
A. He
B. Ne
C. Ar
D. Kr
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 Colour of bromine is
A. Pale yellow
B. Greenish yellow
C. Red brown
D. Greyish black

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