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(A) Leaching is chemical method used to ore benification process
(R) Leaching is usually performed in metallurgy with the help of a non-aqueous solvent

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Both (A) and (R) are true but (R) is not the correct explanation of (A)

Both (A) and (R) are true and (R) is the correct explanation of (A)

Both (A) and (R) are false

(A) is true but (R) is false

answer is C.

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Detailed Solution

Leaching is a widely used extractive metallurgy technique which converts metals into soluble salts in aqueous media.

Example is

2ZnS+O₂+2H₂SO₄⟶2ZnSO₄+2H₂O+2S

it is a oxidation process.

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