Advertisements
Advertisements
प्रश्न
What do you observe when Washing soda is exposed to air ?
Advertisements
उत्तर
Washing soda (Na2CO3.10H2O) is a white crystalline substance and on exposure to air it gets changed to white powder.
APPEARS IN
संबंधित प्रश्न
What is the effect on boiling point of water when impurity is added.
Give two examples of hydrated substances.
Define the Hard water.
Suggest one method for the removal along with the reaction for temporary hardness.
Suggest one method for the removal along with the reaction for permanent hardness of water.
Name three water borne diseases.
Using given sample of temporary and permanent hard water, soft water, ordinary soap, detergent and washing soda how would you distinguish between hard and soft water?
Permanent hardness of water is due to the presence of _______.
Write a note on ion exchange.
What is the reason for the hardness of water?
