हिंदी

Manganese is mainly used in which of these activities? Smelting of iron ore Producing ferro alloys Manufacturing aluminium

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प्रश्न

Manganese is mainly used in which of these activities?

  1. Smelting of iron ore
  2. Producing ferro alloys
  3. Manufacturing aluminium

विकल्प

  • 1, 2 and 3

  • 2 and 3

  • 1 and 2

  • 1 and 3

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उत्तर

1 and 2

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