MCQ
Which of the following parameters is never affected by using a catalyst during a reaction?
- ARate of reaction
- BActivation energy of reaction
- CRate constant of reaction
- ✓Enthalpy of reaction
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$Mn{O_2}(s)\, + \,4{H^ + }(aq)\, + \,2{e^ - }\, \to \, M{n^{ + 2}}(aq)\, + \,2{H_2}O(l)\,;$ $E_2^o\, = \,1.21\,\,V$
$MnO_4^{ - 1}(aq)\, + \,4{H^ + }(aq)\, + \,3{e^ - }\, \to \, Mn{O_2}(s)\, + \,3{H_2}O(l)\,;$ $E_3^o\,?$
value of $E_3^o$ will be ............ $\mathrm{V}$
$(I)\,\,Ph-CH=CH-COOH$
$(II)\,\,p-NO_2-C_6H_4-CH=CH-COOH$
$(III)\,\,p-MeO-C_6H_4-CH=CH-COOH$
$(IV)\,\,p-Cl-C_6H_4-CH=CH-COOH$