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NaCN

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Q.Why is it necessary to add starch or sugar during Lassaigne's test for nitrogen in compounds like hydrazine (NH2NH2NH_2NH_2NH2​NH2​)?

Correct Answer: Option A

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Q.Why is it necessary to add starch or sugar during Lassaigne's test for nitrogen in compounds like hydrazine ( $NH_2NH_2$ )?