Question

Which of the following compounds is insoluble even in hot concentrated $H_{2}S{O}_4$?

• A. Benzene
• B. Hexane
• C. Aniline
• D. Ethylene

Answer 1

The correct option is B Hexane

Hexane is an alkane which is also called as paraffin or less reactive. Thus they are not soluble in concentrated $H_{2}S{O}_4$.

Also, hexane is non-polar and concentrated $H_{2}S{O}_4$ is polar, thus hexane is not soluble in $H_{2}S{O}_4$.