Question

Fill in the blanks

1.A _______metal is used for galvanization.

2. Rusting is a chemical reaction which involves _____oxidation

3. The __________used in cancer treatment bind to the drugs injected which travel

to the site of tumor only.

4. A metal which floats on water________

5. A non-metal that leaves a mark on paper_____

6. A metal used packaging is_______

7. The colour of residue obtained on heating mercury [II] oxide is _____

8. The catalyst which increases the rate of a chemical reaction is called ____

9. The chemical reaction which take place in present of heat is called _____

10. The chemical name of rust is _____.

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Answer 1

Unlike other commonly used metals, zinc is hard and brittle. It is anti-corrosive, and therefore it is primarily used in galvanization, for example coating of iron and steel.