- Rancidity of oil occurs due to the oxidation of unsaturated fatty acids.
- Hydrogenation is the process of adding hydrogen to unsaturated fatty acids, converting them to saturated ones, and reducing the likelihood of rancidity.
Conclusion: Rancidity of oil can be reduced by hydrogenation, as given by option (B).
In a triple-effect backward feed evaporator, the pressure of vapor space in each of the effects is related by —————.
(Hint: Use steam entry as the first effect)