Chemical Properties of Metals and Non metals -2

1. How can you test for hydrogen gas?
2. Why should we not store pickles in utensils made up of aluminium?
3. Write an activity to show that hydrogen gas is liberated when zinc reacts with sulphuric acid?
4. Name two non metals which react with hot concentrated sulphuric or nitric acid.
5. What happens when iron reacts with hydrochloric acid?
6. Write a balanced chemical equation showing reaction of magnesium with water.
7. What happens when metals react with alkalies?

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