Chemistry - Electrochemistry Question with Solution | TestHub
Match the items of Column I and Column II on the basis of the data given below (one to one match only):
= 1.36 V, = -2.71 V, = 0.80 V, = 0.54 V
Column I | Column II |
|---|---|
(i) | (P) anion that can be oxidised by |
(ii) | (Q) non metal which is the best oxidising agent |
(iii) | (R) metal which is the strongest reducing agent |
(iv) Ag | (S) anion which is the weakest reducing agent |
(v) | (T) unreactive metal |
(vi) Na | (U) metal ion which is an oxidising agent |
(vii) | (V) metal ion which is the weakest oxidising agent |
Choose the option with the correct matching:
Options:
Answer:
Solution:
is the hardest to reduce: weakest oxidising metal ion, (i)-(V).
is oxidised by since 0.80 > 0.54, (ii)-(P).
has the highest potential: best non-metal oxidising agent, (iii)-(Q).
Ag is unreactive, (iv)-(T).
is the hardest to oxidise: weakest reducing anion, (v)-(S). ( cannot oxidise it, 0.80 < 1.36.)
Na is the strongest reducing metal, (vi)-(R).
is an oxidising metal ion, (vii)-(U).
Correct matching: (i)→(V); (ii)→(P); (iii)→(Q); (iv)→(T); (v)→(S); (vi)→(R); (vii)→(U). Answer: (C).
