$(b)$ is wrong because plot of $\log$ $ [A] $ vs $ t$ is a straight line
$(c)$ is wrong because time taken for $75\%$ reaction is two half life.
$(d)$ is correct because in $k = A{e^{ - {E_a}/RT}}$, ${E_{a/RT}}$ is dimensionless hence $A$ has the unit of $K.$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| $M^{x+}\, (aq)\,/M(s)$ |
$A{u^{3 + }}(aq)/$ $Au(s)$ |
$A{g^ + }(aq)/$ $Ag(s)$ |
$F{e^{3 + }}(aq)/$ $F{e^{2 + }}(aq)$ |
$F{e^{2 + }}(aq)/$ $Fe(s)$ |
| $E^o\,M^{x+}$ $\,/M(V)$ | $1.40$ | $0.80$ | $0.77$ | $-0.44$ |
If $E_{Z{n^{2 + }}/Zn}^o = - 0.76\,V,$ which cathode will given a maximum value of $E_{cell}^o$ per electron transferred?
