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Match List-I with List-II. List-I List-II (A) Concentration of Gold ore (I) Aniline (B) Leaching of alumina (II) NaOH (C) Froth stabilizer (III) SO 2 (D) Blister copper (IV) NaCN Choose the correct answer from the options given below.

1. (A)-(IV), (B)-(III), (C)-(II), (D)-(I)
2. (A)-(IV), (B)-(II), (C)-(I), (D)-(III)
3. (A)-(III), (B)-(II), (C)-(I), (D)-(IV)
4. (A)-(II), (B)-(IV), (C)-(III), (D)-(I)

Correct answer: (A)-(IV), (B)-(II), (C)-(I), (D)-(III)

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