Draw electron dot structure of ethane.

How does Propane burn in air or oxygen?

What is meant by addition reaction? Which of the following hydrocarbons undergo addition reaction?

${\mathrm{C}}_2{\mathrm{H}}_2, {\mathrm{C}}_3{\mathrm{H}}_8, {\mathrm{C}}_2{\mathrm{H}}_6, {\mathrm{C}}_2{\mathrm{H}}_4, {\mathrm{C}}_3{\mathrm{H}}_4, {\mathrm{C}}_4{\mathrm{H}}_{10}$

The formula of ethanoic acid is _____.

(A) ${\mathrm{CH}}_3\mathrm{COOH}$                        (B) ${\mathrm{C}}_2{\mathrm{H}}_5\mathrm{OH}$                     (C) ${\mathrm{C}}_2{\mathrm{H}}_5\mathrm{COOH}$

Enter your correct answer as A, B or C.

The general formula of alkynes is _____.

(A) ${\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}}$                    (B) ${\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}+2}$                 (C) ${\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}-2}$

Enter your correct answer as A, B or C.