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Metals and Non-Metals — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceMetals and Non-Metals5 Marks
Question
  1. Explain how the following metals are obtained from their compounds by the reduction process:
  1. Metal M which is in the middle of the reactivity series.
  2. Metal N which is high up in the reactivity series.

Give one example of each type.

✓

Answer

  1. By reduction of its oxide with a suitable reducing agent (C/CO/Al)

$\text{eg}: \text{Fe}_{2}\text{ O}_{3} + \text{CO}\rightarrow\text{2 Fe + 3 CO}_{2}$

  1. By electrolytic reduction (of its fused or mloiten salt) eg.:

$\DeclareMathOperator*{\median}{{\text{2 NaCl}}} \median_{\text{(Molten)}}\xrightarrow[{\text{Current}}]{\text{electric}}2 \text{ Na + Cl}_{2}$

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