In earlier two posts, I listed down some selected questions in Mathematics and Physics from the QnA Forum. Here I will list down some interesting questions in chemistry. For all questions in chemistry, check out - http://eduflix.tv/ask/tags/chemistry/
PCl3 & PCl5 exist and so does NCl3, but why is NCl5 a non-existent compound ( even though Nitrogen makes 5 bonds in the case of in NH4Cl )?
What is the difference in the oxidation numbers of two types of sulphur atoms in Na2S4O6? IIT JEE 2011 question
What are the geometrical shapes of the complexes formed by the reaction of Ni2+?- IIT JEE 2011 question