Some Basic Concepts of Chemistry - Result Question 76
####14. The reaction, $3 ClO^{-}(a q) \longrightarrow ClO _3^{-}(a q)+2 Cl^{-}(a q)$ is an example of
(2001)
(a) oxidation reaction
(b) reduction reaction
(c) disproportionation reaction
(d) decomposition reaction
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Solution:
$$ \begin{aligned} & C _x H _y(g)+\left(x+\frac{y}{4}\right) O _2(g) \longrightarrow x CO _2(g)+\frac{y}{2} H _2 O(l) \ & 75 mL \ & \begin{aligned} O _2 \text { used } \quad=20 % & \text { of } 375=75 mL \end{aligned} \ & \text { Inert part of air }=80 % \text { of } 375=300 mL \ & \text { Total volume of gases }=CO _2+\text { Inert part of air } \ & =30+300=330 mL \ & \frac{x}{1}=\frac{30}{15} \Rightarrow x=2 \ & \Rightarrow \quad \frac{x+\frac{y}{4}}{1}=\frac{75}{15} \Rightarrow x+\frac{y}{4}=5 \end{aligned} $$
