What happens when (write chemical equation in each case) (a) ethanol is burnt in air? (b) ethanol is heated with excess conc. $H_{2}S{O}_4$ at 443 K? (c) A piece of sodium is dropped into ethanol?

Q. Write the structural formula of ethanol. What happens when it is heated with excess of conc. $H_{2}S{O}_4$ at 443 K? Write the chemical equation for the reaction stating the role of conc. $H_{2}S{O}_4$ in this reaction.

Q. Write the name and the structural formula of the compound formed when ethanol is heated at 443 K with excess of conc. $H_{2}S{O}_4$. State the role of conc. $H_{2}S{O}_4$ in this reaction. Write chemical equation for the reaction.

Q.

Ethanol, when heated with excess conc. H₂SO₄ at 443K undergoes ________.

Q. (a) What are isomers? Write the structures of two isomers of butane $\left(C_4{H}_{10}\right)$.
(b) Write the name and chemical equation for the reaction that takes place when $5\%$ solution of alkaline $KMn{O}_4$ is added drop by drop to warm ethanol.
(c) Name the product formed when ethanol is heated at $443$K with excess conc. $H_{2}S{O}_4$ and state the role of conc. $H_{2}S{O}_4$ in the reaction.