12th Class Chemistry Surface Chemistry / सतह रसायन Question Bank 12th CBSE Chemistry Surface Chemistry

  • question_answer
    The layer of fat in the pans used for manufacturing soaps can be removed by adding boiling washing soda solution. How will you account for it?

    Answer:

                    Washing soda \[(N{{a}_{2}}C{{O}_{3}})\] gets hydrolysed to form NaOH as follows: \[N{{a}_{2}}C{{O}_{3}}+{{H}_{2}}O\xrightarrow{(boil)}\,2NaOH+C{{O}_{2}}\] NaOH reacts with fat which is a triglyceride to form soap and glycerol by saponification reaction. The soap thus formed helps in cleaning the pan.


You need to login to perform this action.
You will be redirected in 3 sec spinner