Which condensation polymer is formed from hexamethylenediamine and adipic acid?

Write the name and formula of the $2^{nd}$ member of the homologous series having the general formula $C_{n}H_{2n-2}$.

Write true or false for the following statement:
Saturated hydrocarbons will generally give a clean flame,while unsaturated carbon compounds will give a yellow flame with lots of black smoke.

Which catalyst is used to increase the rate of the vulcanization process of rubber?

$CH_{3}COOCH_{3}$ is the molecular formula of which compound?

Why are detergents preferred over soaps for washing clothes in hard water? Explain.