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CH(3)COCH3 underset("Heat")overset(I(2)/...

`CH_(3)COCH_3 underset("Heat")overset(I_(2)//NaOH)rarr[A]overset(Ag//"Heat")rarr[B]underset(Hg^(2+))overset(H_(2)SO_(4)(al))rarr[C]`

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`underset("Propanone")(CH_(2)COCH_(3))underset("Heat")overset(I_(2)//NaOH)rarrunderset("Tri-iodomethane[A]")(CHI_(3))overset(Ag//"beat")rarrunderset("Ethyne [B]")(CH-=CH)underset(H_(2)O)overset(H_(2)SO_(4)("dil"))rarrunderset("Ethanal [C]")(CH_(3)CHO)`
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