CBSE Class 8 Answered
From where metals are occur?
Asked by rk338935 | 10 Jul, 2018, 09:37: PM
Expert Answer
Metals are found in nature according to their reactivity, low reactivity metals are found in free state like gold, silver.
Modrately reactive metals are found in earth's crust mainly as oxides, sulphides and carbonates.
for eg. Zincite ZnO, Galena PbS
Most reactive metals are found in combined state, like Na as rock salt NaCl, K as Carnallite KCl.MgCl2.6H2O.
Answered by Ramandeep | 11 Jul, 2018, 09:56: AM
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