In acidic medium in the presence of conc. H2SO4 acetaldehyde will give
Both b & c
Acetaldehyde undergoes condensation with conc. H2SO4 to give both c & b depending on number of molecules undergoing condensation
In acidic medium (Conc. H2SO4),Hydrogen peroxide reacts with K2Cr2O7 in the presence of ether forms a deep violet coloured chromium peroxide. The Oxidation state of chromium in chromium pentoxide is