$2,4-DNP$ test can be used to identify:

The major product $(Z)$ of the following chemical reaction is

Identify the major product formed from the following reaction sequence:
$CH_3-CH=CH_2$ $\xrightarrow[(i) HBr]{(ii) NaOH}$ ${\xrightarrow[(iii) Cu/573 \ K]{(iv) Ba(OH)_2, \Delta}} ?$

Rank the following compounds in order of increasing value of the equilibrium constant for hydration,$K_{hyd}$. (smallest value first).
$1$: Cyclobutanone
$2$: Cyclopropanone
$3$: Di-tert-butyl ketone

Identify the product $(A)$ and the name of the reaction for the given transformation:

$CH_3-CO-CH_3$ $\xrightarrow{NaCN/HCl} A$ $\xrightarrow{H_3O^{+}/\Delta} B$. In the above sequence of reactions,$A$ and $B$ are: