The gas used in the manufacture of vanaspati from vegetable oil is

Option A

Vanaspati ( वनस्पति) is the Sanskrit word that now refers to the entire plant kingdom. However, according to Charaka Samhitā and Sushruta Samhita medical texts and the Vaisesika school of philosophy, "vanaspati" is limited to plants that bear fruits but no evident flowers. The gas used in the manufacture of vanaspati from vegetable oil is hydrogen.