What are the products formed when benzaldehyde reacts with concentrated sodium hydroxide?

Ethane can be obtained from ethanal in one step by

Which reagent gives an orange-coloured precipitate with acetaldehyde?

Which of the following statements is false?

Predict the products formed when cyclohexanecarbaldehyde reacts with the following reagents:
$(i)$ $PhMgBr$ and then $H_3O^{+}$
$(ii)$ Tollens' reagent
$(iii)$ Semicarbazide and weak acid
$(iv)$ Excess ethanol and acid
$(v)$ Zinc amalgam and dilute hydrochloric acid

The above conversion can be carried out by,