The process employing desorption of the absorbed solute by a solvent is called________?

Hydrogenation of oil is carried out in a/an ________ in Vanaspati manufacturing plant?

When the steel is subjected to normalising, its ________ decreases?

Depreciation of machines fails under the indirect expenses head. As per income tax regulations, it is calculated by the ________ method?

Leakage in a cooking gas cylinder is detected by________?

Higher efficiency in the combustion of solid fuel cannot be achieved by________?