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Metals and Non-Metals — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceMetals and Non-Metals1 Mark
Question
Manganese metal is extracted from manganese dioxide by a reduction process by making use of:
  1. Carbon.
  2. Hydrogen.
  3. Electrolysis.
  4. Aluminium.
✓

Answer

  1. Aluminium.

Explanation:

There are some metals that cannot be satisfactorily reduced by carbon. In such cases, aluminium is used as reducing agent, e.g., manganese.

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