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Standard VII

Chemistry

Sub-Atomic Particles

Assertion :Ur...

Question

Assertion :Uranium undergoes nuclear fusion reaction. Reason: It has a big, unstable nucleus.

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 D Assertion is incorrect but Reason is correct
Having a big, unstable nucleus, uranium undergoes nuclear fission reaction.

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ASSERTION: n-Pentane and n-Hexane belong to a homologous series.

REASON: n-Pentane and n-Hexane belong to the same class of hydrocarbons and they differ by a - $C H_{2}$ - group.

Assertion (A) Order of the reaction can be zero or fractional.

Reason (R) We cannot determine order from balanced chemical equation.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
(b) Both assertion and reason are correct, but reason does not explain assertion.
(c) Assertion is correct, but reason is incorrect
(d) Both assertion and reason are incorrect
(e) Assertion is incorrect but reason is correct.

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Assertion :Uranium undergoes nuclear fusion reaction. Reason: It has a big, unstable nucleus.

The correct option is D Assertion is incorrect but Reason is correctHaving a big, unstable nucleus, uranium undergoes nuclear fission reaction.

The correct option is D Assertion is incorrect but Reason is correct
Having a big, unstable nucleus, uranium undergoes nuclear fission reaction.