Which dicarboxylic acid in presence of a dehydrating agent is least reactive to give an anhydride ?

Which dicarboxylic acid in presence of a dehydrating agent is least reactive for giving an anhydride?

Sulphuric acid acts as dehydrating agent. Substantiate.

Which of the following is not a drying and dehydrating agent ?

When a carboxylic ix converted into its anhydride, the dehydrating agent used will be

Differentiate the function of concentrated sulphuric acid as a drying agent & as a dehydrating agent. Is fused calcium chloride a dehydrating or a desiccating agent. Give reasons.

Which property of sulphuric acid accounts for its use as a dehydrating agent ?