What is the difference between washing soda and baking soda?
Write the chemical formula for bleaching powder. How is bleaching powder prepared? For what purpose is it used in paper factories?

(a) The difference between washing soda and baking soda is given below:

Washing soda	Baking soda
Sodium carbonate or washing soda is made up of sodium and acid. Its formula is Na₂CO₃.	Sodium bicarbonate or baking soda is made up of sodium, acid and hydrogen. Its formula is NaHCO₃.
Washing soda or Sodium carbonate is commonly used in neutralizing acidic solutions in various fields.	Baking soda or Sodium bicarbonate is also used as an odour neutralizer, cleaning or exfoliating agent, and sometimes as a temporary fire extinguisher.

(b) Bleaching powder is calcium oxychloride(CaOCl2). It is prepared by passing chlorine gas over a dry slaked lime.

The equation is given by:

C a (O H)_{2} + C l_{2} \to C a O C l_{2} + H_{2} O

It is used for bleaching wood pulp in the paper industry.

Tutorialspoint

Updated on: 10-Oct-2022

465 Views

Get certified by completing the course

Get Started

What is the difference between washing soda and baking soda?Write the chemical formula for bleaching powder. How is bleaching powder prepared? For what purpose is it used in paper factories?