Sourabh Monga Solutions for Chapter: Acids, Bases and Salts, Exercise 4: PRACTICE QUESTIONS SET

Give a suitable reason for the following statement:
Rainwater conducts electricity but distilled water does not.
 

Give suitable reason for the following statement:
We feel burning sensation in the stomach when we overeat.
 

Give a suitable reason for the following statement:
The crystals of washing soda change to white powder on exposure to air.
 

Give a suitable reason for the following statement:
An aqueous solution of sodium chloride is neutral.
 

Baking soda is used in small amount in baking bread and cake. It helps to make these soft and spongy. An aqueous solution of baking soda turns red litmus blue. It is also used in soda-acid fire extinguisher. Use the information to answer the following question:
How does baking soda help to make cakes and bread soft and spongy?

Baking soda is used in small amount in baking bread and cake. It helps to make these soft and spongy. An aqueous solution of baking soda turns red litmus blue. It is also used in soda-acid fire extinguisher. Use the information to answer the following question:
How does it help in extinguishing fire?
 

Baking soda is used in small amount in baking bread and cake. It helps to make these soft and spongy. An aqueous solution of baking soda turns red litmus blue. It is also used in soda-acid fire extinguisher. Use the information to answer the following question:
Is pH value of baking soda solution less than or greater than $7$?
 

State the chemical name and formula of washing soda. Write two chemical equations involved in the preparation of washing soda from baking soda.