Nuclear Chemistry Test

Result

Nuclear Chemistry Test - 26

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Weekly Quiz Competition

Question 1
4 / -1

A certain nuclide has a half-life period of 30 minutes. If a sample containing 600 atoms atoms will remain ?

A
200 atoms

B
450 atoms

C
75 atoms

D
150 atoms

Solution
Question 2
4 / -1

The half- life period of a radioactive element is 140 days. After 560 days, one gram of the element will be reduced to

A

B

C

D

Solution
Question 3
4 / -1

The half- life of a radioactive element is 2.4 hours. Starting with 10 g of it , how many grams will remain after a period of 9.6 hours?

A
1.25 g

B
1.77 g

C
0.63 g

D
0.5 g

Solution
Question 4
4 / -1

A certain nuclide has half life period of 30 min. If a sample containing 6 × 10¹⁰ atoms is allowed to decay for 90 min, how many atoms will remain?

A

B

C

D

Solution
Question 5
4 / -1

The half – life period of a radioactive element is 30 min. One sixteenth of the original quantity of the element will remain unchanged after

A
One hour

B
Sixteen hours

C
Four hours

D
Two hours

Solution
Question 6
4 / -1

The half life of radium is 1600 years. After how much time will 1 g radium be reduced to 125 mg?

A
1800 years

B
1600 years

C
3200 years

D
4800 years

Solution
Question 7
4 / -1

A
22.5 hours

B
30 hours

C
60 hours

D
3.75 hours

Solution
Question 8
4 / -1

Half- life of radium is 1580 years.Its average life will be

A

B

C

D

Solution
Question 9
4 / -1

A
428

B
200

C
100

D
50

Solution
Question 10
4 / -1

Sulphur – 35 (34. 96903 amu) emits a β − particle but no ray. γ − The product is chlorine- 35 (34.96885 a.m.u.) The maximum energy emitted by the β − particle is

A
16.758 MeV

B
1.6758 MeV

C
0.16758 MeV

D
0.016758MeV