Question

1. Metals are _____ of heat and _____. 2. Iodine is a _____ having lustre. 3. _____ and _____ are kept in kerosene to avoid explosion. 4. Non-metal oxides are _____ in nature. 5. _____ is more reactive than copper. 6. Sulphur forms _____ oxides. 7. Magnesium forms _____ oxides. 8. _____ is less reactive than iron. 9. All metals are hard except _____ and _____. 10. Metals have generally _____ melting and boiling points. 11. _____ are used in medicines as antiseptic. 12. The only liquid metal is _____. 13. _____ is non-metal used in breathing by all living beings. 14. The metal which produces hydrogen gas on reaction with dilute hydrochloric acid as well as sodium hydroxide solution is _____. 15. _____ reacts with cold water vigorously.​

Answer 1

Answer:

1.Good Conductor, electricity

2.Non-metal

3. Sodium (Na) and Potassium (K)

4.Acidic

5.Hydrogen

6.Non- metal

7.Metals

8.Lead

9.Sodium and Magnesium

10.High

11.Iodine

12.Mercury

13.Oxygen

14. Aluminium

15. potassium