CBSE Class 12 (Science) Aldehydes Ketones — practice questions
27 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice CBSE Class 12 (Science) Aldehydes Ketones in the app →Tollens' reagent gives a silver mirror with:The IUPAC name of the simplest aldehyde, $\mathrm{HCHO}$, isThe carbonyl carbon in an aldehyde or ketone isWhich carboxylic acid has the highest $K_a$ (i.e. is the most acidic)?The reaction of formaldehyde with concentrated NaOH is calledAldehydes are easily oxidised to give:Which of these oxidises an aldehyde readily?Ketones need oxidising conditions that are:Oxidising a ketone breaks which kind of bond?Products from oxidising a ketone have carbon atoms numbering:Mild oxidising agents are used to tell aldehydes apart from:Tollens' reagent is an ammoniacal solution of silver:A positive Tollens' test produces a bright:The Tollens' reaction takes place in a medium that is:Bernhard Tollens was a Professor of Chemistry at a university in:Fehling's reagent is made up of how many solutions?Fehling solution A is an aqueous solution of copper:Fehling solution B is alkaline sodium potassium:A positive Fehling's test gives a precipitate that is:Acyl chloride hydrogenated over palladium on barium sulphate gives the:Zinc amalgam with concentrated hydrochloric acid gives the reduction of:Reduction of a carbonyl group using glycol is named after:Adding water to ethyne gives which product?Adding water to alkynes other than ethyne gives:A positive iodoform test shows the compound is a methyl:Aldol condensation needs the molecule to carry at least one:Cannizzaro reaction happens with aldehydes that have no: