• # question_answer The composition of the common glass is [DCE 2004] A) $N{{a}_{2}}O.CaO.6Si{{O}_{3}}$ B) $N{{a}_{2}}O.A{{l}_{2}}{{O}_{3}}.Si{{O}_{2}}$ C) $CaO.A{{l}_{2}}{{O}_{3}}.Si{{O}_{2}}$ D) $N{{a}_{2}}O.CaO.6Si{{O}_{2}}$

The composition of the common glass is $N{{a}_{2}}O.CaO.6Si{{O}_{2}}$.