Nuclear Chemistry Test

Result

Nuclear Chemistry Test - 7

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Weekly Quiz Competition

Question 1
4 / -1

If half-life period is 100 yr, average life is nearly

A
100 yr

B
70 yr

C
144 yr

D
90 yr

Solution
Question 2
4 / -1

What is the fuel of atomic pile ?

A
Thorium

B
Sodium

C
Uranium

D
Petroleum
Question 3
4 / -1

Which of the following has magic number of neutrons?

A
₁₃Al²⁷

B
₂₆Fe⁵⁶

C
₈₃Bi²⁰⁹

D
₉₂U²³⁸
Question 4
4 / -1

The cause of instability of nucleus is

A
high proton, electron ratio

B
high proton, neutron ratio

C
low proton, electron ratio

D
low proton, neutron ratio

Solution
Question 5
4 / -1

If the mass defect of ₅B¹¹ is 0.081 u, its average binding energy (in MeV) is

A
8.60

B
6.85

C
5.60

D
5.86

Solution
Question 6
4 / -1

In terms of energy 1 u is equal to

A
100 J

B
931.1 kcal

C
931.1 MeV

D
10⁷ erg

Solution
Question 7
4 / -1

The energy released in an atom bomb explosion is mainly due to

A
release of neutrons

B
release of electrons

C
greater mass of products than initial material

D
lesser mass of products than initial material

Solution
Question 8
4 / -1

Nuclides

A
have specific atomic numbers

B
have same number of protons

C
have specific atomic number and mass numbers

D
are isotopes

Solution
Question 9
4 / -1

Decrease in atomic number is not observed during

A
α - emission

B
β - emission

C
positron emission

D
electron capture

Solution
Question 10
4 / -1

Which of the following has the maximum penetrating power ?

A
α - particle

B
Proton

C
γ - radiation

D
Positron