Assertion : Graphite is an example of tetragonal crystal system. Reason : For a tetragonal system, a= b is not equal to C , alpha = bita = 90 degree , gama = 120 degree a = b is not equal to c alpha = bita = 90 degree Assertion : Graphite is an example of tetragonal crystal system. Reason : For a tetragonal system gama = 120 degree December 16, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related