The product formed in the reaction is:

Which of the following gives a positive iodoform test? The reaction is shown below:
$2,3,5-\text{trimethylhepta-2,4-diene} \xrightarrow[(2) H_2O/Zn]{(1) O_3} X (C_3H_6O) + Y (C_3H_4O_2) + Z (C_2H_4O)$

Which pair never represents $X$ and $Y$ in the following reaction?
Reaction: $X \xrightarrow{Y} CHCl_3 + Z$

In the following reaction,'$A$' is

Which of the following will fail to react with potassium dichromate and dilute sulphuric acid?

The image shows the hydration equilibrium of formaldehyde and acetone. Identify the values of $x$ and $y$ representing the percentage of hydrate formed at equilibrium for formaldehyde and acetone,respectively.