Question

Fill in the blanks. Choose from the following:

[oleum, two, three, acid, black, white, lead nitrate, ethene, sulphate, barium chloride solution, sulphur dioxide, normal]

Conc. sulphuric acid convert ethanol to ______.

Answer 1

Conc. sulphuric acid convert ethanol to ethene.

Explanation: 

Concentrated sulphuric acid acts as a dehydrating agent and removes water from ethanol on heating, converting it into ethene.

\[\ce{C2H5OH ->[conc. H2SO4][170°C]C2H4 + H2O}\]