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

Colour of chlorine is

Question # 2

Second most element in the universe is

Question # 3

The noble gases are

Question # 4

The most reactive elements are

Question # 5

Radioactive element in halogens is

Question # 6

Half life period of astatine is

Question # 7

The strongest hydrogen bond is in

Question # 8

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

Question # 9

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 # 10

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

Question # 11

Perchloric acid can be stored in solution form

Question # 12

Angle is OF2is

Question # 13

Half life of most stable isotope of astatine is

Question # 14

Hydrogen bond is the strongest between the molecules of:

Question # 15

Oxidation state of fluorine is:

Question # 16

Astatine belongs to group

Question # 17

Which has the least oxidizing power?

Question # 18

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

Question # 19

The only non-metal in liquid form is

Question # 20

Non sticking coating in cooking utensils is done by

Question # 21

Chlorin heptoxide reacts with water to form:

Question # 22

A property which differs fluorine from the other halogens?

Question # 23

Which is the strongest acid?

Question # 24

Bleaching powder may be produced by passing chlorine over

Question # 25

The strongest acid is

Question # 26

Which is used in arc welding and cutting?

Question # 27

Colour of bromine is

Question # 28

Bleaching powder is agent:

Question # 29

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

Question # 30

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

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ECAT Chemistry Chapter 16 Important MCQ's

Sr.# Question Answer
1 The strongest hydrogen bond is in
A. HF
B. HCl
C. HBr
D. Hl
2 Which of the following hydrogen halide is the weakest acid in solution
A. HF
B. HBr
C. HI
D. HCl
3 Which is used as cooling medium in nuclear reactors?
A. He
B. Ne
C. Ar
D. Kr
4 Which halogen has maximum Van-der Waal's forces?
A. F2
B. Cl2
C. Br2
D. I2
5 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
6 Colour of Iodine is
A. Pale yellow
B. Greenish yellow
C. Red brown
D. Greyish black
7 Which compound of noble gas xenon can be prepared?
A. Oxides
B. Fluoride
C. Oxyfluorides
D. All of these
8 Half life period of astatine is
A. 8.1 hrs
B. 8.2 Hrs
C. 8.3 hrs
D. 8.4 hrs
9 Gaseous HF exists in the form of
A. Monomers
B. Cyclic hexamers
C. As single entity
D. Both a and b
10 Bleaching powder is prepared by the reaction of Cl2 with.
A. Lime stone
B. Lime water
C. slaked lime
D. Lime

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