positively charged hydrogen ions

double positively charged helium nuclei

Emission of -particle from an atom

increases the number of neutrons in the atom

increases the number of protons in the atom

increases the number of neutrons in the atom

decreases the number of proton in the atom

does not change the number of neutrons and protons in an atom

The difference between a nuclear reactor and atomic bomb is that

the chain reaction in nuclear reactor is not controlled

no chain reaction takes place in nuclear reactor while in the atomic bomb there is a chain reaction

the chain reaction in nuclear reactor is controlled

the chain reaction in nuclear reactor is not controlled

no-chain reaction takes place in atomic bomb while it takes place in nuclear reactor

The difference between a

the chain reaction in nuclear reactor is not controlled

no chain reaction takes place in nuclear reactor while in the atomic bomb there is a chain reaction

the chain reaction in nuclear reactor is controlled

the chain reaction in nuclear reactor is not controlled

no-chain reaction takes place in atomic bomb while it takes place in nuclear reactor

increases the number of neutrons in the atom

increases the number of protons in the atom

increases the number of neutrons in the atom

decreases the number of proton in the atom

does not change the number of neutrons and protons in an atom

36 + Mcqs in Radioactivity in Chemistry Page 1 McqOptions

1.	Energy produced in nuclear reaction is given by
A.	Charle-s Law
B.	Grahm's law
C.	Gay-Lussac's law
D.	Einstein's law
Answer» E.

Discussion

2.	Cobalt-60 is commonly used in radiation therapy because it emits
A.	-rays
B.	beta rays
C.	gamma rays
D.	X - rays
Answer» D. X - rays

Discussion

3.	The particles are
A.	high energy electrons
B.	positively charged hydrogen ions
C.	high energy X-ray radiations
D.	double positively charged helium nuclei
Answer» E.

Discussion

4.	A radioactive substance has a half life of four months. Three-fourth of the substance would decay in
A.	3 months
B.	4 months
C.	8 months
D.	12 months
Answer» D. 12 months

Discussion

5.

Match the List-I and List-II and select the correct answer using the codes given below the Lists
List-I (Nuclear reactor component) List-II (Substance used)
1. Moderator A. Uranium
2. Control rod B. Graphite
3. Fuel rods C. Lead
4. Coolant D. Lead
E. Sodium
Codes

A.

1-B, 2-A, 3-C, 4-E

B.

1-B, 2-C, 3-A, 4-E

C.

1-C, 2-B, 3-A, 4-E

D.

1-C, 2-D, 3-A, 4-B

Answer» E.

Discussion

6.	The fuel in atomic pile is
A.	carbon
B.	sodium
C.	petroleum
D.	uranium
Answer» E.

Discussion

7.

Match the Column-I Radio-isotope with Column-II, medicinal use and select the correct matching
Column-I Column-II
1. ⁶⁰Co A. Leucaemia
2. ¹³¹I B. Anaemia
3. ⁵⁹Fe C. Cancerous tumours
4. ³²P D. Disorders of thyroid gland
Codes

A.

1-C, 2-D, 3-A, 4-B

B.

1-A, 2-B, 3-C, 4-D

C.

1-C, 2-D, 3-B, 4-A

D.

1-D, 2-C, 3-B, 4-A

Answer» D. 1-D, 2-C, 3-B, 4-A

Discussion

8.	Which one of the following can be used to confirm whether drinking water contains a gamma emitting isotope or not ?
A.	Microscope
B.	Lead plate
C.	Scintillation counter
D.	Spectrophotometer
Answer» D. Spectrophotometer

Discussion

9.	In atomic reactors, graphite is used as
A.	Iubricant
B.	fuel
C.	linear of the ractor
D.	moderator
Answer» E.

Discussion

10.

Hydrogen bomb is based on the principle of
List-I (Characteristics) List-II (Particles)
F Zero mass 1. Positron
G Fractional charge 2. Neutrind
H Fractional shin 3. Quark
J Integral spin 4. Photon
Code
F G H J
A. 2 3 1 4
B. 3 2 4 1
C. 2 3 4 1
D. 3 2 1 4

A.

B.

C.

D.

Answer» B. B.

Discussion

11.	Which of the following is a radioactive element ?
A.	Sulphur
B.	Polonium
C.	Tellurium
D.	Selenium
Answer» C. Tellurium

Discussion

12.	Natural radioactivity was discovered by
A.	Rutherford
B.	Becquerel
C.	Curie
D.	Schmidt
Answer» C. Curie

Discussion

13.	A radioactive substance emits
A.	alpha particle
B.	beta particle
C.	gamma particle
D.	all of the three
Answer» E.

Discussion

14.	A radioactive substance has a half life of four months. Three - fourth of the substance would decay in
A.	3 months
B.	4 months
C.	8 months
D.	12 months
Answer» D. 12 months

Discussion

15.	A device used for the measurement of radioactivity is
A.	Mass spectrometer
B.	Cyclotron
C.	Nuclear reactor
D.	G.M. counter
Answer» E.

Discussion

16.	In which process, a nucleus spontaneously breaks down by emitting radiation ?
A.	Radioactive decay
B.	Fusion
C.	Refraction
D.	None of these
Answer» B. Fusion

Discussion

17.	Emission of -particle from an atom
A.	increases the number of protons in the atom
B.	increases the number of neutrons in the atom
C.	decreases the number of proton in the atom
D.	does not change the number of neutrons and protons in an atom
Answer» B. increases the number of neutrons in the atom

Discussion

18.	The difference between a nuclear reactor and atomic bomb is that
A.	no chain reaction takes place in nuclear reactor while in the atomic bomb there is a chain reaction
B.	the chain reaction in nuclear reactor is controlled
C.	the chain reaction in nuclear reactor is not controlled
D.	no-chain reaction takes place in atomic bomb while it takes place in nuclear reactor
Answer» C. the chain reaction in nuclear reactor is not controlled

Discussion

19.	Hydrogen bomb is based on the principle of
A.	nuclear fission
B.	nuclear fusion
C.	natural radioactivity
D.	artificial radioactivity
Answer» C. natural radioactivity

Discussion

20.	Natural radioactivity was discovered by
A.	Rutherfoed
B.	Becquerl
C.	Curic
D.	Schmidt
Answer» C. Curic

Discussion

21.	The activity of radioisotope change with
A.	temperature
B.	pressure
C.	chemical environment
D.	emmission of radiation
Answer» E.

Discussion

22.	Which one of the following is not radioactive ?
A.	Astanine
B.	Francium
C.	Tritium
D.	Zirconium
Answer» E.

Discussion

23.	Which one radiation has the highest energy ?
A.	-particle
B.	-particles
C.	-rays
D.	None of these
Answer» D. None of these

Discussion

24.	Natural radioactivity
A.	Rutherford
B.	Becquerel
C.	Curie
D.	Schmidt
Answer» C. Curie

Discussion

25.	A device used for the
A.	Mass spectrometer
B.	Cyclotron
C.	Nuclear reactor
D.	G.M. counter
Answer» E.

Discussion

26.	Which one of the following can be used to confirm whether drinking water contains a
A.	Microscope
B.	Lead plate
C.	Scintillation counter
D.	Spectrophotometer
Answer» D. Spectrophotometer

Discussion

27.	The difference between a
A.	no chain reaction takes place in nuclear reactor while in the atomic bomb there is a chain reaction
B.	the chain reaction in nuclear reactor is controlled
C.	the chain reaction in nuclear reactor is not controlled
D.	no-chain reaction takes place in atomic bomb while it takes place in nuclear reactor
Answer» C. the chain reaction in nuclear reactor is not controlled

Discussion

28.	Match the List-I and List-II and select the correct answer using the codes given below the Lists
A.	1-B, 2-A, 3-C, 4-E
B.	1-B, 2-C, 3-A, 4-E
C.	1-C, 2-B, 3-A, 4-E
D.	1-C, 2-D, 3-A, 4-B
Answer» E.

Discussion

29.	The fuel in
A.	carbon
B.	sodium
C.	petroleum
D.	uranium
Answer» E.

Discussion

30.	In atomic reactors,
A.	Iubricant
B.	fuel
C.	linear of the ractor
D.	moderator
Answer» E.

Discussion

31.	Match the Column-I Radio-isotope with Column-II, medicinal use and select the correct matching
A.	1-C, 2-D, 3-A, 4-B
B.	1-A, 2-B, 3-C, 4-D
C.	1-C, 2-D, 3-B, 4-A
D.	1-D, 2-C, 3-B, 4-A
Answer» D. 1-D, 2-C, 3-B, 4-A

Discussion

32.	Emission of
A.	increases the number of protons in the atom
B.	increases the number of neutrons in the atom
C.	decreases the number of proton in the atom
D.	does not change the number of neutrons and protons in an atom
Answer» B. increases the number of neutrons in the atom

Discussion

33.	In which process, a nucleus spontaneously breaks down by
A.	Radioactive decay
B.	Fusion
C.	Refraction
D.	None of these
Answer» B. Fusion

Discussion

34.	The activity of
A.	temperature
B.	pressure
C.	chemical environment
D.	emmission of radiation
Answer» E.

Discussion

35.	Which one of the following is not
A.	Astanine
B.	Francium
C.	Tritium
D.	Zirconium
Answer» E.

Discussion

36.	Which one
A.	-particle
B.	-particles
C.	-rays
D.	None of these
Answer» D. None of these

Discussion

Explore topic-wise MCQs in Chemistry.

Energy produced in nuclear reaction is given by

Cobalt-60 is commonly used in radiation therapy because it emits

The particles are

A radioactive substance has a half life of four months. Three-fourth of the substance would decay in

Match the List-I and List-II and select the correct answer using the codes given below the Lists
List-I (Nuclear reactor component) List-II (Substance used)
1. Moderator A. Uranium
2. Control rod B. Graphite
3. Fuel rods C. Lead
4. Coolant D. Lead
E. Sodium
Codes

The fuel in atomic pile is

Match the Column-I Radio-isotope with Column-II, medicinal use and select the correct matching
Column-I Column-II
1. ⁶⁰Co A. Leucaemia
2. ¹³¹I B. Anaemia
3. ⁵⁹Fe C. Cancerous tumours
4. ³²P D. Disorders of thyroid gland
Codes

Which one of the following can be used to confirm whether drinking water contains a gamma emitting isotope or not ?

In atomic reactors, graphite is used as

Hydrogen bomb is based on the principle of
List-I (Characteristics) List-II (Particles)
F Zero mass 1. Positron
G Fractional charge 2. Neutrind
H Fractional shin 3. Quark
J Integral spin 4. Photon
Code
F G H J
A. 2 3 1 4
B. 3 2 4 1
C. 2 3 4 1
D. 3 2 1 4

Which of the following is a radioactive element ?

Natural radioactivity was discovered by

A radioactive substance emits

A radioactive substance has a half life of four months. Three - fourth of the substance would decay in

A device used for the measurement of radioactivity is

In which process, a nucleus spontaneously breaks down by emitting radiation ?

Emission of -particle from an atom

The difference between a nuclear reactor and atomic bomb is that

Hydrogen bomb is based on the principle of

Natural radioactivity was discovered by

The activity of radioisotope change with

Which one of the following is not radioactive ?

Which one radiation has the highest energy ?

Natural radioactivity

A device used for the

Which one of the following can be used to confirm whether drinking water contains a

The difference between a

Match the List-I and List-II and select the correct answer using the codes given below the Lists

The fuel in

In atomic reactors,

Match the Column-I Radio-isotope with Column-II, medicinal use and select the correct matching

Emission of

In which process, a nucleus spontaneously breaks down by

The activity of

Which one of the following is not

Which one

Explore topic-wise MCQs in Chemistry.

Energy produced in nuclear reaction is given by

Cobalt-60 is commonly used in radiation therapy because it emits

The particles are

A radioactive substance has a half life of four months. Three-fourth of the substance would decay in

Match the List-I and List-II and select the correct answer using the codes given below the ListsList-I (Nuclear reactor component)List-II (Substance used)1. ModeratorA.Uranium2. Control rodB.Graphite3. Fuel rodsC.Lead 4. CoolantD.LeadE.Sodium Codes

The fuel in atomic pile is

Match the Column-I Radio-isotope with Column-II, medicinal use and select the correct matchingColumn-IColumn-II1. 60CoA.Leucaemia2. 131IB.Anaemia3. 59FeC.Cancerous tumours 4. 32PD.Disorders of thyroid gland Codes

Which one of the following can be used to confirm whether drinking water contains a gamma emitting isotope or not ?

In atomic reactors, graphite is used as

Hydrogen bomb is based on the principle ofList-I (Characteristics)List-II (Particles)F Zero mass1.PositronG Fractional charge2.NeutrindH Fractional shin3.Quark J Integral spin4.Photon CodeFGHJA.2314B.3241C.2341D.3214

Which of the following is a radioactive element ?

Natural radioactivity was discovered by

A radioactive substance emits

A radioactive substance has a half life of four months. Three - fourth of the substance would decay in

A device used for the measurement of radioactivity is

In which process, a nucleus spontaneously breaks down by emitting radiation ?

Emission of -particle from an atom

The difference between a nuclear reactor and atomic bomb is that

Hydrogen bomb is based on the principle of

Natural radioactivity was discovered by

The activity of radioisotope change with

Which one of the following is not radioactive ?

Which one radiation has the highest energy ?

Natural radioactivity

A device used for the

Which one of the following can be used to confirm whether drinking water contains a

The difference between a

Match the List-I and List-II and select the correct answer using the codes given below the Lists

The fuel in

In atomic reactors,

Match the Column-I Radio-isotope with Column-II, medicinal use and select the correct matching

Emission of

In which process, a nucleus spontaneously breaks down by

The activity of

Which one of the following is not

Which one

Match the List-I and List-II and select the correct answer using the codes given below the Lists
List-I (Nuclear reactor component) List-II (Substance used)
1. Moderator A. Uranium
2. Control rod B. Graphite
3. Fuel rods C. Lead
4. Coolant D. Lead
E. Sodium
Codes

Match the Column-I Radio-isotope with Column-II, medicinal use and select the correct matching
Column-I Column-II
1. ⁶⁰Co A. Leucaemia
2. ¹³¹I B. Anaemia
3. ⁵⁹Fe C. Cancerous tumours
4. ³²P D. Disorders of thyroid gland
Codes

Hydrogen bomb is based on the principle of
List-I (Characteristics) List-II (Particles)
F Zero mass 1. Positron
G Fractional charge 2. Neutrind
H Fractional shin 3. Quark
J Integral spin 4. Photon
Code
F G H J
A. 2 3 1 4
B. 3 2 4 1
C. 2 3 4 1
D. 3 2 1 4