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Question

During spontaneous radioactive decay,

A
atomic number must increase
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B
binding energy of product must be higher than binding energy of reactant
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C
mass number must change
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D
ratio of neutron & protons must increase
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Solution

The correct option is B binding energy of product must be higher than binding energy of reactant
In a spontaneous reaction, energy is released. This means binding energy is more for the products, and they are more stable than the reactants.

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