The Tischenko reaction yields an ester in the presence of which catalyst?

The major product of the following reaction is

Which of the following compounds undergoes the Cannizzaro reaction?

Which of the following would undergo aldol condensation?

An ester $(A)$ with molecular formula $C_9H_{10}O_2$ was treated with excess of $CH_3MgBr$ and the complex so formed was treated with $H_2SO_4$ to give an olefin $(B)$. Ozonolysis of $(B)$ gave a ketone with molecular formula $C_8H_8O$ which shows positive iodoform test. The structure of $(A)$ is

Which of the following compounds will form lactic acid from its cyanohydrin?