Question

Metal and non metals
1) what is meant by. Roosting in metbuturgy?
2) Silver articles becomes black when exposed to air. Why?
3) why there is no reaction take place when copper is added t Ferrous Sulphate? 4) Copper looses its brown layer when exposed to air. Why?
5) Alumini sium oxide is caused Amphoteric oxide, why?
6) what is meant by thermit propers ? write its uses
7) what will happen if zinc is added to iron sulphate. write chemical etuation.
8) why carbonate ores and supplide ores are converted into oxide ores during me tullurgy?
9) Define Ionic compounds. Give examples
10) why, ionic compounds conduct eledri city only in molten state
11) what are covalent compounds. Give example ​

Answer 1

Answer:

From Which Chapter

Explanation:

From which chapter