Grade 12th pass10 grade science
One day Kamal saw that her mother was roasting peanuts in it pen (kadahi) in the kitchen and she had taken ordinary salt to roast the peanuts. She was surprised to observe that in spite of very high temperature, the salt does not melt and the peanuts also get roasted. Common salt is used as a raw material in the preparation of washing soda in which the number of molecules of water of crystallisation is:
One day Kamal saw that her mother was roasting peanuts in it pen (kadahi) in the kitchen and she had taken ordinary salt to roast the peanuts. She was surprised to observe that in spite of very high temperature, the salt does not melt and the peanuts also get roasted. Common salt is used as a raw material in the preparation of washing soda in which the number of molecules of water of crystallisation is:
