Transition and InnerTransition Elements - Result Question 74
####74. Complete and balance the following reactions $\quad(1983,2 M)$
(i) $Zn+NO _3^{-} \longrightarrow Zn^{2+}+NH _4^{+}$
(ii) $Cr _2 O _7^{2-}+C _2 H _4 O \longrightarrow C _2 H _4 O _2+Cr^{3+}$
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Solution:
- (i) $4 Zn+NO _3^{-}+10 H^{+} \longrightarrow 4 Zn^{2+}+NH _4^{+}+3 H _2 O$
(ii) $Cr _2 O _7^{2-}+3 C _2 H _4 O+8 H^{+} \longrightarrow 3 C _2 H _4 O _2+2 Cr^{3+}+4 H _2 O$
