In the reaction,$[X]$ will be:

Write a note on the electrophilic substitution reaction of aromatic aldehydes and ketones.

The increasing order of the following compounds towards $HCN$ addition is:

In a set of the given reactions,acetic acid yielded a product $C$. Product $C$ would be:
$CH_3COOH + PCl_5 \to A$ $\xrightarrow{C_6H_6, \text{anh. } AlCl_3} B$ $\xrightarrow{C_2H_5MgBr, \text{ether}} C$

Given below are two statements $:$
Statement $(I) :$ Vanillin, which has a benzene ring substituted with a methoxy group, a hydroxyl group, and an aldehyde group, will react with $NaOH$ and also with Tollen's reagent.
Statement $(II) :$ Vanillin will undergo self-aldol condensation very easily.
In the light of the above statements, choose the most appropriate answer from the options given below $:$

Which of the following gives the iodoform test?