Question

Fill in the blanks:
1._______ is used in thermometers.
2. ________are generally ductile.
3. Copper is____ reactive than iron.
4. Metals usually displace ___from acids. 5. The gas usually filled in the electric bulbis_______
6._______ is used in table salt to prevent goitre.​

Answer 1

Explanation:

1, mercury

2.copper

3.less

4.hydrogen

5.argon and nitrogen

6.Iodised salt

Answer 2

Answer:

1 . mercury

3.more

I know only this I study in 6 that's whyf