Dehydrating cane sugar with concentrated sulphuric acid

Concentrated sulphuric acid is:

The main product obtained by heating ethanol with concentrated sulphuric acid at 383 K is :

Give an example of the process which demonstrates the dehydrating nature of concentrated sulphuric acid.

Name a solid which can be used instead of concentrated sulphuric acid to prepare ethylene by the dehydration of ethanol.

Complete the following statements by selecting the correct alternative from the choices given : In the dehydration of alcohols to alkenes by heating with concentrated sulphuric acid, the initiation step is :

From the list of the organic compounds ethanol, ethane, methanol, methane, ethyne and ethene, name a compound Formed by the dehydration of ethanol by concentrated sulphuric acid.

Explain the following : Why concentrated sulphuric acid is always added to water and not the water to concentrated sulphuric acid? Why the mixture gets hot ?

When copper metal is treated with concentrated sulphuric acid, the gas liberated is

Name the products formed when copper is heated with concentrated sulphuric acid.

When sodium chloride is heated with concentrated sulphuric acid, the gas liberated is