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  • Balance the following reaction using the half-reaction method. <img alt="a\ MnO_2+b\ HCl\rightarrow xMnCl_2+yH_2O+zCl_2" src="https://entrancecorner.oncodecogs.com/gif.latex?a%5C%20MnO_2&

Balance the following reaction using the half-reaction method.

a\ MnO_2+b\ HCl\rightarrow xMnCl_2+yH_2O+zCl_2

and find the value of x+y+z.(reaction is balanced using the smallest integers).

Option: 1

4


Option: 2

5


Option: 3

6


Option: 4

7


Answers (1)

best_answer

 In ionic form:

 2Cl^-\rightarrow Cl_2+2e^- 

MnO_2+4H^{+} +2e^-\rightarrow Mn^{2+}+2H_2O

Adding we get

2Cl^-+MnO_2+4H^+\rightarrow Cl_2+Mn^{2+}+2H_2O

MnO_2+4HCl\rightarrow MnCl_2+Cl_2+H_2O

x=1, y=2, z=1   x+y+z=4
 

Posted by

Ritika Jonwal

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