Question

1. Name two most ductile metals.

2. Sodium is stored in kerosene. Why?

3. Write the uses of any two metals in our daily life?

4. What is malleability?

5. Which is the only metal liquid at room temperature?

6. What is an alloy?Give example.

7. Which metal is present in Calcium Hydroxide ?

8. Which non-metal catches fire if exposed to air?

9. Which gas are produced when metal reacts with acid?

10. Which non-metal is essential for our life and inhale during breathing?

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Answer 1

1) Copper and Platinum are most ductile metals

2) Sodium is stored in kerosene because it is a highly reactive metal . It can catch fire if it is exposed to air

3)Metals are used in jewellery and in constructional purposes

4)Malleability is a property by which metals can be beaten into thin sheets

5)Mercury

6)An alloy is a combination of metals or metals combined with one or more other elements. For example: bronze and brass

7)Calcium.

8) Phosphorus

9) Hydrogen gas

10) Oxygen