Q. Pick out the correct statement.

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Q. __________ gas is normally not used as a coolant in a nuclear reactor, because of its high neutron capture cross-section.

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Q. The emission of an a-particle causes the resultant nucleus to have

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Q. Solar energy results from __________ reaction.

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Q. In nuclear reactions, __________ number is conserved.

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Q. The molecular weight of heavy water is

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Q. Which of the following is not a good moderating material ?

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Q. Nuclear power generation capacity in India is

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Q. Heavy water plant is not located at

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Q. Pick out the wrong statement.

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Q. The most abundant isotope of natural uranium is

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Q. Out of the following, nucleus of __________ atom contains the largest number of neutrons.

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Q. Which of the following undergoes fission reaction easily ?

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Q. Thorium-232 (a fertile material) on absorption of a neutron gets converted into __________ , which is a fissile material.

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Q. Percentage of heavy water in ordinary water is around

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Q. Safety rods provided in nuclear reactors to guard against accidents, in case of earthquake are made of

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Q. Plutonium

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Q. A control rod

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Q. Number of secondary neutron emitted on fission of an atom of U-235 by slow neutron bombardment is

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Q. Enriched uranium means that, it contains

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