Assertion : $F e C l_{3}$ gives blood red colour with $N H_{4} C N S$ . But after $F e C l_{3}$ has been treated with $S n C l_{2}$ , there is no colour with $N H_{4} C N S$ Reason: $S n C l_{2}$ reduces $F e C l_{3}$ to $F e C l_{2}$ hence no colour with $N H_{4} C N S$

Read the above assertion and reason and choose the correct option regarding it.

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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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
been treated with $S n C l_{2}$ , there is no colour with $N H_{4} C N S$ ,becuase $S n C l_{2}$ reduces $F e C l_{3}$ to $F e C l_{2}$ hence no colour with $N H_{4} C N S$
So both assertion nd Reason are correct and Reason is the correct explanation for Assertion.
Hence option A is correct.

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