Assertion :White phosphorus is more reactive than red phosphorus. Reason: Red phosphorus contains tetrahedral units linked to one another to form linear chains.

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 A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
White phosphorous is more reactive than red phosphorous because red phosphorous has more stability due to its structure.

Red phosphorus atoms form a network of more number of atoms and are less reactive and not much flammable. White phosphorous ( $P_{4}$ ) has a tetrahedral structure that is thermodynamically unstable so that it combusts in air.

Thus, the reason is the correct explanation for the assertion.

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