44ᵗʰ B.P.S.C. (Pre) 2000
Which one of the following is used in the manufacture of soaps?
aVegetable oil✓ Correct
bMobil oil
cKerosene oil
dCutting oil
Explanation
When an oil or fat is mixed with sodium hydroxide solution, the oil/fat gets converted into the corresponding sodium salts of fatty acids and glycerol. This reaction is called saponification.
general-science