Advertisements
Advertisements
Question
What are the two main ways in which common salt (sodium chloride) occurs in nature?
Solution
1. Common salt occurs naturally in sea water in the dissolved form
2. Common salt is found in underground deposits as rock salt.
APPEARS IN
RELATED QUESTIONS
State one relevant observation for the following:
Anhydrous calcium chloride is exposed to air for some time.
Write the chemical name and formula of common salt.
Name the raw material used for the production of caustic soda.
Fill in the following blank:
Rock salt is mined just like ......................
Explain why chlorine is used for sterilising drinking water supply.
Name three products of the chlor-alkali process. State two uses of each of these products.
Answer the following questions below, relating your answers only to salts in the following list:
Sodium chloride, anhydrous calcium chloride, copper sulphate-5-water.
(i) What is the name given to the water in the compound copper sulphate-5-water?
(ii) If copper sulphate-5-water is heated, the water is driven off leaving anhydrous copper sulphate. What is the colour of anhydrous copper sulphate?
(iii) By what means, other than heating, you can dehydrate copper sulphate-5-water and obtain anhydrous copper sulphate?
(iv) Which one of the salts in the given list is deliquescent?
State what would you observe when :
The salt ferric chloride is exposed to the atmosphere.
Sodium carbonate is a basic salt because it is a salt of a ____________.
How is normal salt obtained? Give a suitable reaction.