Educational: Samanya Lavan ka Dravyamaan Aadharit 10% Vilayan Banana

Samanya Lavan ka Dravyamaan Aadharit 10% Vilayan Banana
Jal mein samanaya lavan ke ghol se 10% dravyamaan taiyar kiya jata hai.
via YouTube https://www.youtube.com/watch?v=06H2TQA3uPA