List of top Chemistry Questions on Aldehydes And Ketones asked in IPU CET

Consider the following reaction sequence of alkene. \[ \text{CH}_3\text{CH} = \text{CH}_3 \xrightarrow{\text{O}_3} A \xrightarrow{\text{H}_2\text{O}} B \] What is the product B?
Aldehydes are readily oxidised to yield carboxylic acids but ketones are inert to oxidation. Which is the most likely explanation regarding this difference in reactivity?