Alkali Metals:

1. What is the main product obtained when sodium is allowed to react with dry ammonia at
2. Why alkali metals cannot be obtained by chemical reduction method?
3. What are the chemical formulae of caustic soda, washing soda and baking soda? What are ther
 main uses?
4. What happens when a piece of sodium is dropped into water?
5. What is the biological importance of sodium?
6. What would happen when the nitrate of an alkali metal is heated?

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