Sun 17 Jan, 2016 01:15 am - Sir, how much area an electric field surrounds? is the area of the electric field measurable or it is spread to infinity? (view)
Sat 26 Dec, 2015 02:32 am - We know that the H+ of an acid changes the color of blue litmus into red.but i want to know about the main chemical change or reaction for which under acidic condition blue litmus turns red. (view)
