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प्रश्न
With reference to extraction of metal, answer the following:
Which of the following is not a method for the concentration of ores?
विकल्प
Froth floatation
Smelting
Magnetic separation
Gravity separation
MCQ
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उत्तर
Smelting
Explanation:
Smelting is not a method of concentration of ores; it is a reduction process used after concentration to extract the metal from its oxide. Froth floatation, magnetic separation, and gravity separation are methods used to concentrate ores by removing impurities (gangue).
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क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 6: General Principles and Processes of Isolation of Elements - QUESTIONS FROM ISC EXAMINATION PAPERS [पृष्ठ ३६४]
