Chemistry deals broadly with the study of matter. There  are  different  aspects  of chemistry  in \\hich matter  is studied.  These  arc  Phvsical.  Inorganic.  Organic  and  Analytical.   In fact.  the classification  has been further broken  d0\\11 in such  way  that  details  of  matter in  terms  of  structure.ยท  periodic1ty and energy can be well understood. Phvsical  ChemistrY is thus one aspect.  Physical  Chemistry  deals  with a wide variety of topics from the states of matter to the reaction rates. The modem approach to chemistry is to deal with the following three aspects of matter.