A. Sodium fluoride
B. Potassium fluoride
C. Beryllium fluoride
D. Magnesium fluoride
At T (K), 100 L of dry oxygen is present in a sealed container. It is subjected to silent electric discharge, till the volumes of oxygen and ozone become equal. What is the volume (in litres) of ozone formed at T (K)?
A radio isotope has a half life 10 days.If today there is 125g of it left,what was its weight 40 days earlier?