Choose the appropriate word(s) from the bracket [ethanol, [Fe(H2O)6]2+, anode, d2sp3, Cannizzaro…

Choose the appropriate word(s) from the bracket [ethanol, [Fe(H2O)6]2+, anode, d2sp3, Cannizzaro, reducing, cathode, sp3d2, iodine, [Fe(CN)6]4-, methanol, aldol, oxidising, manganese dichloride]: Formaldehyde lacks $\alpha$-hydrogen atom and thus forms sodium formate and ____ on reaction with conc. alkali. This reaction is known as ____ reaction.