question_answer 25)

Complete the following reactions: (i) \[PbS(s)+{{H}_{2}}{{O}_{2}}(aq)\to \] (ii) \[MnO_{4}^{-}(aq)+{{H}_{2}}{{O}_{2}}(aq)\to \] (iii) \[CaO(s)+{{H}_{2}}O(g)\to \] (iv) \[AlC{{l}_{3}}(g)+{{H}_{2}}O(l)\xrightarrow{{}}\] (v) \[C{{a}_{3}}{{N}_{2}}(s)+{{H}_{2}}O(l)\xrightarrow{{}}\]

Answer:

(i) \[4PbS{{O}_{4}}(s)+4{{H}_{2}}O(l)\] (ii) \[2MnO_{4}^{-}+5{{H}_{2}}{{O}_{2}}+6{{H}^{+}}\to 2M{{n}^{+}}+8{{H}_{2}}O+5{{O}_{2}}\] (iii) \[CaO(s)+{{H}_{2}}O(g)\to Ca{{(OH)}_{2}}(aq)\] (iv) \[AlC{{l}_{3}}(g)+3{{H}_{2}}O(l)\to Al{{(OH)}_{3}}(s)+3HCl(aq)\] (v) \[C{{a}_{2}}{{N}_{2}}(s)+6{{H}_{2}}O(l)\to 3Ca{{(OH)}_{2}}(aq)+2N{{H}_{3}}(g)\]