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Class 10 Science Medium Mcq English Medium

Metals in the middle of the reactivity series (Zn, Fe, Pb, etc.) are found in the earth's crust mainly as

Question
Metals in the middle of the reactivity series (Zn, Fe, Pb, etc.) are found in the earth's crust mainly as
Free elements only
Oxides, sulphides or carbonates
Pure metal blocks
Gases
Answer
Oxides, sulphides or carbonates
Detailed Explanation
Moderately reactive metals are found in the earth's crust mainly as oxides, sulphides or carbonates.
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