Question

Write three differences between metals and non-metals on the basis of chemical properties.

Answer 1

Three differences between metals and non-metals on the basis of chemical properties :

S. No.	Basis	Metals	Non-metals
1	Reaction with oxygen	Almost all metals react with oxygen to form metal oxide. 4Na + O2 → 2Na2O	Non-metals react with oxygen to form acidic oxides. C + O2 → CO2
2	Reaction with water	Only reactive metals react with water to form oxides or hydroxides and liberate hydrogen gas. 2K(s) + 2H2O(l) → 2KOH(aq) + H2(g)	Non-metals do not displace hydrogen from water too.
3	Reaction with diluted acid	All metals react with diluted acids to produce salt and hydrogen gas. Zn + 2HCl(dil) →ZnCl2 + H2	Non-metals do not react with dilute acids