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 strongest hydrogen bond is in

Question # 2

Gaseous HF exists in the form of

Question # 3

The strongest acid is

Question # 4

Astatine belongs to group:

Question # 5

Second most element in the universe is

Question # 6

Bleaching powder is agent:

Question # 7

the anhydride of HCIO4is

Question # 8

The most reactive elements are

Question # 9

Which is used in bacterial lamps

Question # 10

Colour of Iodine is

Question # 11

The only non-metal in liquid form is

Question # 12

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

Question # 13

A property which differs fluorine from the other halogens?

Question # 14

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

Question # 15

Used in tooth pastes is

Question # 16

Chlorin heptoxide reacts with water to form:

Question # 17

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

Question # 18

Colour of bromine is

Question # 19

Colour of fluorine gas is

Question # 20

The compound with cyclic hexamer is

Question # 21

Perchloric acid can be stored in solution form

Question # 22

Colour of chlorine is

Question # 23

Noble gases in the atmosphere are

Question # 24

Bleaching powder may be produced by passing chlorine over

Question # 25

Smell of halogens is:

Question # 26

The most reactive elements are:

Question # 27

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

Question # 28

Angle is OF2is

Question # 29

Non sticking coating in cooking utensils is done by

Question # 30

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

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ECAT Chemistry Chapter 16 Important MCQ's

Sr.# Question Answer
1 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
2 Which is used in arc welding and cutting?
A. He
B. Ne
C. Ar
D. Kr
3 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
4 Which of the following hydrogen halide is the weakest acid in solution?
A. HF
B. HBr
C. Hl
D. HCl
5 Which is present as a result of radioactive decay on earth?
A. He
B. Ne
C. Ar
D. Kr
6 Which has complete valence shell?
A. C
B. N
C. O
D. Ne
7 Smell of halogen is
A. Fruity
B. Sweet
C. Irritating
D. Rotten egg
8 Bleaching powder may be produced by passing chlorine over
A. Calcium carbonate
B. Hydrated calcium sulphate
C. Anhydrous calcium sulphate
D. Calcium hydroxide
9 The compound with cyclic hexamer is
A. HF
B. HCl
C. HBr
D. HI
10 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

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