Mechanism of cannizzaros reaction of benzaldehyde is

Q. Which of the following reactants can undergo cannizaro's reaction?

Mechanism of cannizzaros reaction of benzaldehyde is Q. Which of the following cannot undergo intramolecular cannizaro's reaction?

Mechanism of cannizzaros reaction of benzaldehyde is Q. Which of the following is best hydride donor in cannizaro's reaction?

Which of the following does not undergo Cannizzaro's reaction ?

Mechanism of cannizzaros reaction of benzaldehyde is Q. Order of the above reaction is

Which of the following aldehydes will undergo Cannizzaro's reaction ?

Which of the following aldehyde will undergo Cannizzaro's reaction ?