The compound that does not give the iodoform test is

In the reaction $C_8H_6O_4$ $\xrightarrow{\Delta} X$ $\xrightarrow{NH_3}$,the compound $X$ is

Identify $C$ in the following sequence of reactions:
$2\text{-methylcyclohexanecarboxylic acid}$ $\xrightarrow{SOCl_2} A$ $\xrightarrow{NH_3} B$ $\xrightarrow{P_4O_{10}, \text{heat}} C(C_8H_{13}N)$

The product of this reaction is:

The major product formed in the following reaction is
$C_6H_5CH=CH_2$ $\xrightarrow[(ii) H_3O^+]{(i) KMnO_4, KOH, \Delta}$ $\xrightarrow{(iii) Br_2/FeBr_3} \text{Product}$

Which of the following reduces Tollen's reagent?