What is the reducing agent used in Clemmensen's reduction?

The reagent used in Clemmensen reduction is

Answer any FOUR of the following questions. c. Name the reagent used in the Clemmensen reduction.

(a) How does benzene reacts with acetyl- chloride in the presence of anhydrous AlCl_(3) ? Give equation. (b) (i) Write general equation for esterification reaction. (ii) Name the product obtained when benzoic acid is heated with ammonia. (c) Name the reagent used in the Clemmensen reduction.

(a) Name the reducing agent used in the extraction of zinc oxide. Give the equation. (b) What is the principle involved in zone refining of metals?

a. Write the balanced chemical equations for the extraction of copper metal from its ore. What is the reducing agent used? b. What is the chemical formed as green coating when copper reacts with atmospheric gases in moist conditions?

Which of these is a reducing agent ?

Identify the reducing agent in the following reactions.

Name the reducing agent used in the extraction of zinc from zinc oxide. Write the chemical equation for this reaction.