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  1. The most practical fuel for a thermonuclear reactor, both from economical and nuclear consideration is

  2. A.

     Plutonium

    B.

     Uranium

    C.

     Deuterium

    D.

     Thorium

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    Answer : Option C

    Explanation :

    Most commercial nuclear reactors use normal water (also called light water) as a neutron moderator.
    Some reactor designs, such as the CANDU reactor, use heavy water.
    A heavy water molecule contains deuterium (Hydrogen-2), which is an isotope of hydrogen that has a neutron in its nucleus in addition to the proton.


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