By what type of reaction could a compound containing C, H and Cl be obtained from ethyne ?

Which of the following statements is wrong about alkanes ?

(A) They are all saturated hydrocarbons.
(B) They can undergo addition as well as substitution reactions.
(C) They are almost non polar in nature.
(D) On complete combustion give out carbon dioxide and water.

What type of compound is formed by the reaction between acetic acid and an alcohol ?

Write balanced equation for : Acetic acid is warmed with ethanol in the presence of conc. H₂SO₄.