Nuclear Chemistry Test Online MCQs

1. Bi²¹⁰ has a half-life of 5 days. The time taken, for 7/8 of a sample to decay, is:

2. Energy released in the nuclear fusion reaction is ₁H² + ₁H³ → ₂He⁴ + ₀n¹ Atomic mass of ₁H²= 2.014, ₁H³ = 3.016   ₂He⁴ = 4.003, ₀n¹ = 1.009 amu.

3. ₉₂²³⁸U emits 8 α-particles and 6 β-particles. The neutron/proton ratio in the product nucleus is:

4. The compound used in enrichment of uranium for nuclear power plant is:

5. ₁₃A1²⁷ + ₂He⁴→ ₁₄Si³⁰ + ₁H¹ + Q Mass of ₁₃A1²⁷ = 26.9815 amu and mass of ₁₄Si³⁰ = 29.9738. The Q is equal to:

6. α-particles can be detected using:

7. Decay constant of a radioactive substance is 69.3 sec⁻¹, find t_1/16 of the same substance.

8. Which of the following radioisotopes is used as anticancerous?

9. A radioactive substance does not emit:

10. X-Rays are emitted during

11. The energy equivalent of 2.0 mg mass defect is

12. ₆C¹² and ₁T³ are formed in nature due to the nuclear reaction of neutron with