1.
Match the following:

A. Grignard reagent — 1. H2/Pd-BaSO4\text{H}_2/\text{Pd-BaSO}_4
B. Clemmensen reduction — 2. N2H4/KOH\text{N}_2\text{H}_4/\text{KOH}
C. Rosenmund reduction — 3. CH3MgX\text{CH}_3\text{MgX}
D. Wolff-Kishner reduction — 4. Zn-Hg/conc. HCl\text{Zn-Hg}/\text{conc. HCl}, 5. H2/Ni\text{H}_2/\text{Ni}