# 2pilihanWhich reagent is used in the preparation of carbonyl compounds through ozonolysis of alkenes?KMnO4O3PCCLiAlH4
# 3pilihanWhat type of reaction occurs when a carbonyl compound reacts with a Grignard reagent?Nucleophilic additionOxidationReductionCondensation
# 4pilihanWhich test is used to identify the presence of a methyl carbonyl group?Tollens' testFehling's testIodoform testBenedict's test