Question

Which one of the following statements is/are true regarding solubility of alkanes?

• A. Insoluble in water
• B. Soluble in various organic solvents
• C. (a) and (b) above.
• D. None of the above

Answer 1

The correct option is C (a) and (b) above.

Any molecule’s solubility depends on whether it is a polar molecule or a non-polar molecule. So, polar molecules are soluble in other polar molecules and non-polar molecules are soluble in other non-polar molecules.
Alkanes(non-polar) are insoluble in water(polar).
Alkanes(non-polar) are soluble in various organic solvents(non-polar) for example: Benzene. ether etc.
Hence option (a) and (b) are correct.