1. Which of the following gases has very high neutron capture cross-section, making it unsuitable as a coolant in nuclear reactor?
2. Heavy water (D2O) in a nuclear reactor serves as a
3. Moderating material used in a thermal-reactor should be a
4. The 92U238 emits an a-particle. The product is
5. Nuclear fuel generally used in reactors is uranium oxide instead of uranium, because the former has higher
6. __________ have the same mass number, but different nuclear charge.
7. Water is a better coolant than a gas (like CO2, He, N2 etc.), because it
8. Which is the most commonly used molten metal for cooling of nuclear reactors?
9. Radioactive decay is a __________ change.
10. Heavy water used in the nuclear reactors to slow down the speed of neutrons is
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