Question

# Iodine value is related to ___.A- Fats and oilsB- AlcoholsC- EstersD- Hydrocarbons

Hint: Organic compounds containing special functional groups react with iodine. The amount of iodine that reacts with a given amount of organic compound is called iodine value. Try to identify which of the given functional group-containing compounds react with iodine.

$R-CH=CH-R_{ 1 }\quad +\quad I_{ 2 }\quad →\quad R-CHI-CHI-R_{ 1 }\quad$