How many elements known to us? Ans: 118 Who gave the theory of triads? Ans: Dobereiner Who gave Octave theory? Ans: Newlands What is the drawback of Dobereiner traits? Only three triads were recognised...
Are you scared of numerical? Do you think you don't understand them? If yes, then read ahead. See, it might be any exam, but numerical won't leave your back. So let's talk about common problems and their...