A) $ HgSO _4/H _2SO _4 $
B) $ Cu _2Cl _2 $
C) $ H _3PO _2 $ आणि $ H _2O $
D) $ {H^{+}}/H _2O $
योग्य उत्तर: C
जेव्हा डायझोनियम मीठ $ {H_3}P{O_2} $ सोबत उपचारित केले जाते आणि त्यानंतर जलविघटन केले जाते,
तेव्हा डायझोनियम गटाची जागा ?H ने घेतली जाते, ज्यामुळे हायड्रोकार्बन तयार होते.
म्हणून, A हे असणे आवश्यक आहे $ {H_3}P{O_2}\text{/},{H_2}O\text{.} $
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