$L$ $\xrightarrow[(ii) H_3O^{\oplus}]{(i) PhMgBr} M$ $\xrightarrow{CrO_3 / H^{\oplus}} N$ $\xrightarrow{Ph_3P=CH_2} Ph_2C=CH_2$
$L$ in the above sequence of reaction is/are (where $L \neq M \neq N$)

Identify the product obtained when benzonitrile is reduced by stannous chloride $(SnCl_2)$ in the presence of hydrochloric acid $(HCl)$,followed by acid hydrolysis.

$A$ man has been asked to synthesize the molecule shown in the image. He thought of preparing the molecule using an aldol condensation reaction. He found a few cyclic alkenes in his laboratory. He thought of performing an ozonolysis reaction on an alkene to produce a dicarbonyl compound,followed by an aldol reaction to prepare "$x$". Predict the suitable alkene that can lead to the formation of "$x$".

The reagents used in the Etard reaction $(I)$ and the Stephen reaction $(II)$ are:

In the reaction:
$C_6H_5-H \xrightarrow{[X] / AlCl_3} C_6H_5-C(=O)-CH_2-C_6H_5$
$[X]$ will be:

Alkyl cyanides,when reacted with a Grignard reagent followed by hydrolysis,yield which of the following products?