The product $(P)$ formed in the following reaction is $:$

Identify $(Z)$ in the following reaction:
$CH_3COOH$ $\xrightarrow{LiAlH_4} (X)$ $\xrightarrow{573 \ K, \ Cu} (Y)$ $\xrightarrow{dil.NaOH} (Z)$

When acetaldehyde is heated with Fehling solution,a red precipitate is formed. Which of the following is that?

The compound formed by the reaction of ethanal with semicarbazide contains $.....................$ number of nitrogen atoms.

Trichloroacetaldehyde was subjected to Cannizzaro's reaction by using $NaOH$. The mixture of the products contains sodium trichloroacetate and another compound. The other compound is:

The amount (in $mol$) of bromoform $(CHBr_{3})$ produced when $1.0 \ mol$ of acetone reacts completely with $1.0 \ mol$ of bromine in the presence of aqueous $NaOH$ is $......$