Acetamide reacts with $P_2O_5$ (phosphorus pentaoxide) to give:

Arrange the following in increasing order of their $pK_a$ values:
$(x) CH_3SO_3H$
$(y) CH_3COOH$
$(z) CH_3OH$

$A \xrightarrow{LiAlH_4} 2B$ (Chiral alcohol only); structure of $A$ is

Ethyl butyrate has the flavour of which fruit?

Given below are two statements :
Statement $I :$ The esterification of carboxylic acid with an alcohol is a nucleophilic acyl substitution.
Statement $II :$ Electron withdrawing groups in the carboxylic acid will increase the rate of esterification reaction.
Choose the most appropriate option

In the preparation of an ester,the commonly used dehydrating agent is