Aldehydes and ketones can be reduced to corresponding hydrocarbons by

Reduction of aldehydes and ketones to their corresponding hydrocarbons is carried out by a reaction named Clemmenson’s reduction. Here, zinc amalgam (which is nothing but a binary solution i.e. liquid in solid solution of zinc and mercury) along with concentrated hydrochloric acid is used for the reduction of ketones to give the corresponding hydrocarbon. Therefore, the correct answer is option (d) refluxing with zinc amalgam and concentrated HCl