question_answer 1)

  Explain redox reactions on the basis of electron transfer. Give suitable examples.

Answer:

  Gain of electron is reduction and loss of electron is oxidation. \[SnC{{l}_{2}}+HgC{{l}_{2}}\to SnC{{l}_{4}}+Hg\] \[S{{n}^{2+}}+H{{g}^{2+}}\to S{{n}^{4+}}+Hg\] \[S{{n}^{2+}}\to S{{n}^{4+}}+2{{e}^{-}}\] (loss of electron, i.e., oxidation) \[H{{g}^{2+}}+2{{e}^{-}}\to Hg\](gain of electron, i.e., reduction)