Materials around us can be classified into (a) Elements and compounds (b) Metals and non-metals (c) Acids and bases (d) None of these.
Metals and Non-Metals
Explanation for correct answer
(B) Metals and Non-Metals
Explanation for incorrect answer
Option (A) Elements and compounds
Option (C) Acids and Bases
Therefore, Materials can be classified into metals and non-metals. hence option (B) is correct.