NEET UG CHEMISTRY MCQ: ELECTRO CHEMISTRY

Read the following statements carefully.

(i) According to a convention cell potential of hydrogen electrode (S.H.E.) is considered to be zero at all temperatures.

(ii) e.m.f. of the cell ${Pt}({s}) / {H}_2({~g}, 1 {bar}) / {H}^{+}({aq}, 1 {M})$ $\| {Zn}^{2+}({aq}, 1 {M}) / {Zn}$ is -0.76 . This negative value indicates that ${Zn}^{2+}$ ion reduces less easily then ${H}^{+}$ ions.

(iii) Copper does not dissolve in ${HCl}$ but dissolves in ${HNO}_3$ as in nitric acid it gets oxidised by nitrate ion.

(iv) Inert metals like $Pt$ or Au are used in certain electrodes i.e., these metals does not participate in reaction but provide surface for oxidation and reduction reactions.

(v) Fluorine has the highest electrode potential thereby making it strongest oxidising agent whereas lithium with lowest electrode potential is the weakest oxidising and strongest reducing agent.

Which of the following is the correct coding for the statements above.