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Nuclear Fission

From the foll...

Question

From the following, quantities conserved in nuclear reactions are :

A

mass number and energy

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B

mass number and charge number

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C

charge number and mass

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D

mass number, charge number and energy

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Solution

The correct option is D mass number, charge number and energy
Laws governing nuclear reactor:
1) Charged number is conserved in nuclear reactions.
2) Mass number is conserved in nuclear reactions.
3) The total energy (rest mass energy + K.E.) of the reacting particles must be equal to the total energy of the product particles.

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Q. If both the number of protons and the number of neutrons are conserved in each nuclear reaction in what way is mass converted into energy (or vice-versa) in a nuclear reaction?

Assertion: In nuclear reactions, sum of atomic numbers of reactants equal sum of atomic numbers of products.

Reason: In nuclear reactions, total number of protons and neutrons are conserved.

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_{1}^{2} H +_{1}^{2} H \to_{2}^{3} H +_{0}^{1} n + 3.27 M e V

,
although number of nucleons is conserved, yet energy is released, How? Explain.
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