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Metals and Non-Metals — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceMetals and Non-Metals3 Marks
Question
Write a displacement reaction for non-metal.
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Answer

In this reaction, one anion replaces another one from its solution. An anion is a negatively charged ion or non-metal. For example, more reactive halogen replaces less reactive halogen from its solution.

  • Chlorine displaces bromine from an aqueous solution of sodium bromide.

$\text{Cl}_2(\text{g})+2\text{NaBr(aq)}\xrightarrow{\ \ \ \ \ \ \ \ \ \ \ \ \ }2\text{NaCl(aq)}+\text{Br}_2(\text{g})$

  • Bromine splaces iodine from potassium iodide solution.

$\text{Br(g)}+2\text{Kl(aq)}\xrightarrow{\ \ \ \ \ \ \ \ \ \ \ \ }2\text{KBr(aq)}+\text{l}_2(\text{aq})$

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