Question

pls give me the most important questions of class 10 Science METALS AND NON- METALS

Answer 1

1.difference between metals and nonmetals physical
2. difference between metals and nonmetals based on chemical properties
3. why metals are good conductor of heat and electricity
4. why sodium and potassium are kept in kerosene oil
5. what happens when metals react with acid and water
6. nitric acid does not produce hydrogen gas when react with metals why
7. what is Aqua Regina or Royal water
8. what is displacement reaction ?what is reactivity series
8. why noble gases does not react
9. define ionic compounds or electrovalent compounds with examples
9 what are amphoteric oxide examples
10. what are alkalis examples
11. ionic compounds conduct electricity? why
12. how metals are extracted on the basis of reactivity series
13. what is the difference between roasting and calcination
14 . name one ore of Mercury and write its formula
14. how is refining of metal done
15.what is the difference between Mineral n ore
16. what is corrosion what are the requirements when a metal is corroded
17. what are alloys and what are their properties with examples
18. galvanizing is the method of protecting steel and iron from rusting explain
HOPE THERE QUESTIONS WILL HELP YOU