Which of the following is/are the benefits of selective leaching?(a) Enrichment of silicon on stainless steel for better passivity(b) Preparation of Raney nickel catalyst(c) Extraction of metals using hydrometallurgy(d) Enrichment of silicon on stainless steel for better passivity, preparation of Raney nickel catalyst and extraction of metals using hydrometallurgyThis question was posed to me by my school teacher while I was bunking the class.Question is taken from Eight Forms topic in section Eight Forms of Corrosion of Corrosion Engineering

Which of the following is/are the benefits of selective leaching?(a) E

1.	Which of the following is/are the benefits of selective leaching?(a) Enrichment of silicon on stainless steel for better passivity(b) Preparation of Raney nickel catalyst(c) Extraction of metals using hydrometallurgy(d) Enrichment of silicon on stainless steel for better passivity, preparation of Raney nickel catalyst and extraction of metals using hydrometallurgyThis question was posed to me by my school teacher while I was bunking the class.Question is taken from Eight Forms topic in section Eight Forms of Corrosion of Corrosion Engineering
Answer» The correct answer is (d) Enrichment of silicon on stainless steel for better passivity, preparation of Raney NICKEL catalyst and EXTRACTION of metals using hydrometallurgy The explanation is: The benefits ASSOCIATED with SELECTIVE leaching are i. Enrichment of silicon on Stainless steel for better passivity ii. Preparation of Raney nickel catalyst iii. Extraction of metals using hydrometallurgy

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