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

The most reactive elements are:

Question # 2

Noble gases are placed in group

Question # 3

Hydrogen bond is the strongest between the molecules of:

Question # 4

Chlorine heptoxide (Cl2O7) reacts with water to form

Question # 5

The compound with cyclic hexamer is

Question # 6

Colour of bromine is

Question # 7

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

Question # 8

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

Question # 9

The noble gases are

Question # 10

The strongest hydrogen bond is in

Question # 11

Smell of halogen is

Question # 12

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 # 13

Which halogen occurs naturally in a positive oxidation state?

Question # 14

Radioactive element in halogens is

Question # 15

A property which differs fluorine from the other halogens?

Question # 16

Half life of most stable isotope of astatine is

Question # 17

The most reactive elements are

Question # 18

Bleaching powder is prepared by the reaction of Cl2 with.

Question # 19

Nobel gases are placed group:

Question # 20

The strongest acid is

Question # 21

Angle is OF2is

Question # 22

Halogens are called.

Question # 23

The only non-metal in liquid form is

Question # 24

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

Question # 25

Which is the strongest acid?

Question # 26

the anhydride of HCIO4is

Question # 27

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

Question # 28

Oxidation state of fluorine is:

Question # 29

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

Question # 30

I2O5is used for quantitative study of

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ECAT Chemistry Chapter 16 Important MCQ's

Sr.# Question Answer
1 Smell of halogen is
A. Fruity
B. Sweet
C. Irritating
D. Rotten egg
2 Oxidation state of fluorine is:
A. +1
B. +2
C. -1
D. -2
3 Which of the following hydrogen halide is the weakest acid in solution
A. HF
B. HBr
C. HI
D. HCl
4 Perchloric acid can be stored in solution form
A. 47%
B. 57%
C. 67%
D. 77%
5 The most reactive elements are:
A. Group IV-A
B. Group V-A
C. Group VI-A
D. Group VII -A
6 Used in tooth pastes is
A. Fluorides
B. Iodides
C. halides
D. nitrides
7 Gaseous HF exists in the form of
A. Monomers
B. Cyclic hexamers
C. As single entity
D. Both a and b
8 Which halogen has maximum Van-der Waal's forces?
A. F2
B. Cl2
C. Br2
D. I2
9 Second most element in the universe is
A. He
B. Ne
C. Ar
D. Kr
10 Which is present as a result of radioactive decay on earth?
A. He
B. Ne
C. Ar
D. Kr

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