Draw the structure of semicarbazone of cyclopentanone.

OR


Draw the structure of product formed when propanal is treated with zinc amalgam and concentrated hydrochloric acid.


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OR


When propanal is treated with zinc amalgam and concentrated hydrochloric acid, propane is obtained. This is Clemmonsen’s reduction.


CH3CH2CHO Zn-Hg/HCl CH3CH2CH3


(Propanal) (Propane)


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