Question

Which of the following is/are the property of washing soda?

• A. It is a white powder.
• B. It is odourless.
• C. It is acidic in nature.
• D. It is hygroscopic in nature.

Answer 1

Answer: (A), (B), (D)

The correct options are
A It is a white powder.
B It is odourless.
D It is hygroscopic in nature.

The properties of washing soda (${\text{Na}}_2{\text{CO}}_3.10{\text{H}}_2\text{O}$) are given below.
- It is a white and odourless powder.
- It is hygroscopic, that is it absorbs moisture if left exposed to air.
- It is basic in nature as it turns red litmus blue.
- It is used mainly for washing clothes.