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Question

MnO2(s)+4HCl(aq)Heat−−MnCl2(aq.)+2H2O+Cl2(g)
The equivalent weight of MnO2 in the above reaction is:

A
23.4
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B
33.6
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C
43.5
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D
53.6
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Solution

The correct option is D 43.5
MnO2+4HClMnCl2+2H2O+Cl2
71 g of Cl2 is displaced by = 1 mole (M) of MnO2
35.5 g of Cl2 is displaced by
=M71×35.5=M2 of MnO2
Equivalent weight of MnO2
=Molecular mass2=872=43.5

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