Question

The role of metal written on arrows in the given chemical reactions is :

• A. catalyst
• B. oxidising agent
• C. reducing agent
• D. dehydrating agent

Answer 1

The correct option is A catalyst

1) Ni or Pd is used as a catalyst in the hydrogenation of alkenes to form alkanes.

2) Conc. sulfuric acid is used as catalyst in the neutralization reaction of an acid with alcohol to form esters.

3) Alk. potassium permanganate acts as a strong oxidising agent for converting alcohols to their respective acids.

Hence the correct option is A.