Which pair of test results would show that substance X is a ketone?
- AX has no reaction with Tollens’ reagent. X reacts with alkaline aqueous iodine.
- BX is reduced by lithium aluminium hydride. X is oxidised by acidified dichromate(VI).
- CX reacts with 2,4-DNPH reagent. X has no reaction with Fehling’s reagent.
- DX reacts with hydrogen cyanide. X is reduced by lithium aluminium hydride.