question_answer 53)

  The formula of soda ash is: (a) \[N{{a}_{2}}C{{O}_{3}}.10{{H}_{2}}O\]             (b) \[N{{a}_{2}}C{{O}_{3}}\cdot 2{{H}_{2}}O\]                (c)\[N{{a}_{2}}C{{O}_{3}}\cdot {{H}_{2}}O\]        (d) \[N{{a}_{2}}C{{O}_{3}}\]

Answer:

  (d) \[N{{a}_{2}}C{{O}_{3}}\]is the formula of soda ash.