Sir app mahan hi jo itni acchi knowledge di
sir plz acidity or alkalinity and arsenic test bhi btao
sir b. pharmacy 1st year ke important practical btaye sir jaldi
and also the 2nd method of heavy meatals
Hii
In Reaction ,how to come 2HCl
Please upload titration experiments also.plzzzzzz
Soluble sulphate =SO4
Bahut hi essy way me explaining nice
And thank you