question_answer 65)

  Identify the redox reactions out of the following reactions and identify the oxidising and reducing agents in them : (i) \[3HCl(aq)+HN{{O}_{3}}(aq)\to C{{l}_{2}}(g)+NOCl(g)+2{{H}_{2}}O(l)\] (ii) \[HgC{{l}_{2}}(aq)+2KI(aq)\to Hg{{I}_{2}}(s)+2KCI(aq)\] (iii) \[F{{e}_{2}}{{O}_{3}}(s)+3CO(g)\xrightarrow{\Delta }2Fe(s)+3C{{O}_{2}}(g)\] (iv)\[PC{{l}_{3}}(l)+3{{H}_{2}}O(l)\to 3HCl(aq)+{{H}_{3}}P{{O}_{3}}(aq)\] (v) \[4N{{H}_{3}}+3{{O}_{2}}(g)\to 2{{N}_{2}}(g)+6{{H}_{2}}O(g)\]

Answer:

  Redox reactions are given below : (i)                 (iii) (v)