Assertion : $_{92} U^{235} +_{0} n^{1} ⟶_{56} {Ba}^{140} +_{36} {Ke}^{93} + 3_{0} n^{1}$ is a nuclear fission reaction. Reason: Neutrons emitted do not react further.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Assertion is incorrect but Reason is correct

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Solution

The correct option is C Assertion is correct but Reason is incorrect
A uranium-235 atom absorbs a neutron and fissions into two new atoms, releasing three new neutrons and some binding energy.
Neutrons emitted during first fission bombard more uranium atoms and the reaction goes on. It is called chain reaction.

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Choose the correct option.

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