Embibe Experts Solutions for Chapter: Aldehydes, Ketones and Carboxylic Acids, Exercise 1: CUSAT CAT 2017

Aldehydes or ketones react with $\mathrm{\alpha }$-bromo esters and metallic zinc to yield

Which of the following does not react with Fehlings solution?

Reduction of cinnamic acid $\left(\mathrm{ph}.\mathrm{CH}=\mathrm{CH}.\mathrm{COOH}\right)$ with ${\mathrm{LiAlH}}_4$ Gives the following

In the sequence of the reaction, the final product is  

Which of the following on dehydration with ${\mathrm{P}}_2{\mathrm{O}}_5$ Will give Ethanenitrile?