In preparation of soap, steam is passed through the mixture of vegetable oils or fats and caustic soda. The role of steam in the soap-making process is ______?

صابن کی تیاری میں ، بھاپ سبزیوں کے تیل یا چربی اور کاسٹک سوڈا کے مرکب سے گزرتی ہے۔ صابن سازی کے عمل میں بھاپ کا کردار ______ ہے؟

It produces glucose as a by-product.

To evaporate water from the mixture.

To melt the fats in the mixture.

None of these

In soap-making (saponification), steam helps melt fats or oils, allowing them to react efficiently with caustic soda (NaOH).

This ensures the chemical reaction proceeds smoothly to form soap and glycerol.