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

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

Question # 2

Colour of bromine is

Question # 3

Perchloric acid can be stored in solution form

Question # 4

The most reactive elements are

Question # 5

Bleaching powder is prepared by the reaction of Cl2 with.

Question # 6

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 # 7

Second most element in the universe is

Question # 8

Noble gases are placed in group

Question # 9

The strongest hydrogen bond is in

Question # 10

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

Question # 11

The noble gases are

Question # 12

Non sticking coating in cooking utensils is done by

Question # 13

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

Question # 14

Molecule of halogens exist as

Question # 15

Smell of halogens is:

Question # 16

Which halogen has Iustrous shining?

Question # 17

The available chlorine is bleaching power is

Question # 18

Halogens are called.

Question # 19

The most reactive elements are:

Question # 20

Corrosion proof parts of machinery are prepared from

Question # 21

Astatine belongs to group

Question # 22

Which has complete valence shell?

Question # 23

Which is used in arc welding and cutting?

Question # 24

The strongest acid is

Question # 25

the anhydride of HCIO4is

Question # 26

Which is used in bacterial lamps

Question # 27

Which is the strongest acid?

Question # 28

Which compound of noble gas xenon can be prepared?

Question # 29

Angle is OF2is

Question # 30

Nobel gases are placed group:

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ECAT Chemistry Chapter 16 Important MCQ's

Sr.# Question Answer
1 Gaseous HF exists in the form of
A. Monomers
B. Cyclic hexames
C. As single entity
D. Both (a) and (b)
2 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
3 Bleaching powder is prepared by the reaction of Cl2 with.
A. Lime stone
B. Lime water
C. slaked lime
D. Lime
4 Which has complete valence shell?
A. C
B. N
C. O
D. Ne
5 Used in tooth pastes is
A. Fluorides
B. Iodides
C. halides
D. nitrides
6 Colour of chlorine is
A. Pale yellow
B. Greenish yellow
C. Red brown
D. Greyish black
7 Oxidation state of fluorine is
A. +1
B. +2
C. -1
D. -2
8 The only non-metal in liquid form is
A. S
B. Cl
C. Br
D. P
9 The strongest hydrogen bond is in
A. HF
B. HCl
C. HBr
D. Hl
10 Oxidation state of fluorine is:
A. +1
B. +2
C. -1
D. -2

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