Question

Which one of the following is applied on wounds as an antiseptic?
a) Metals b) Non-metals
c) Metalloids d) All of these
20. Which metal is found in plants?
a) Fe b) Cr c) Mg d) CO
21. Gold is used in-
a) Thermometers b) Fuel
c) Jewellery d) Machinery
22. Which substance is present in fuel?
a) Copper b) Iron c) Gold d) Carbon
23. Aluminium foil used for wrapping-
a) Food b) Clothes c) Plastic d) Wires
24. Which one of the following is used for decorating sweets?
a) Aluminium foil b) Copper foil
c) Silver foil d) All of these
25. Which one of the following enhances the growth of plants?
a) Industrial gadgets b) Fertilisers
c) Automobiles d) Water boile​

Answer 1

Answer:

1. Non-metals
2. Mg
3. Jewellery
4. Carbon
5. Food
6. Silver foil
7. Fertilizers

I hope it will help you.