Redox Reactions And Electrochemistry Ques 668

Question: In the disproportionation reaction $ 3HClO_3\xrightarrow{{}}HClO_4+Cl_2+2O_2+H_2O, $ the equivalent mass of the oxidizing agent is (molar mass of $ HClO_3=84.45 $ )

Options:

A) 16.89

B) 32.22

C) 84.45

D) 28.15

Show Answer

Answer:

Correct Answer: A

Solution:

[a] $ ClO_3^{-}\xrightarrow{{}}Cl_2^{0} \\ x-6=-1 x=0 \\ \\ x=+5 x=0( x=oxidationnumber ) \\ \\ \\ $ $ Equivalentmass=\frac{Molecularmass}{Oxidationnumber} $ $ =\frac{84.45}{5}=16.89 $



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