Match Matrix ( 
= 0.8).
Column I | Column II | ||
(a) | Pt | H2 (0.1 bar) | H+ (0.1 M) || H+ (1 M) | H2 (0.01 bar) | Pt | (p) | Concentration cell |
(b) | Ag | Ag+ (10–9 M) || Ag+ (10–2 M) | Ag | (q) | Ecell > 0 |
(c) | Cu | Cu2+ (0.1 M) || Cu2+ (0.01 M) | Cu | (r) | Eºcell = 0 but cell is working. |
(d) | Pt | Cl2 (1bar) | HCl (0.1 M) || NaCl (0.1M) | Cl2 | Pt (1 bar) | (s) | non working condition |
Text Solution
Verified by ExpertsA
(A - p, q, r) ; (B - p, q, r) ; (C - p, s) ; (D - p, s)
Sol. 
=– 
log 
,
=– 
log 
= 
× 3 = +ve
Cell reaction Ag + c (10 –2 ) → Ag + a (10 –9 )
E cell = 
– 
log 
= 
+ 
× 7 > 0
0 and not conc. cell
= 0 – 
log 
= – 
log 
= – ve
= – 
log 
= 
log 
= 0
And 
= 0.
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