ExamBro
ExamBro
JEE Mains · Chemistry · STD 12 - 2. Electrochemistry

\(\mathrm{Pt}(\mathrm{s})\left|\mathrm{H}_2(\mathrm{~g})(1 \mathrm{bar})\left\|\mathrm{H}^{+}(\mathrm{aq})(1 \mathrm{M})\right\| \mathrm{M}^{3+}(\mathrm{aq}), \mathrm{M}^{+}(\mathrm{aq})\right| \mathrm{Pt}(\mathrm{s})\) \(298 \mathrm{~K}\) पर दिए गए सेल के \(\mathrm{E}_{\text {cell }}\) का मान \(0.1115 \mathrm{~V}\) है जहाँ \(\frac{\left[\mathrm{M}^{+}(\mathrm{aq})\right]}{\left[\mathrm{M}^{3+}(\mathrm{aq})\right]}=10^{\mathrm{a}}\) है। \(\mathrm{a}\) का मान है___________ दिया गया है : \(\mathrm{E}^\theta \mathrm{M}^{3+} / \mathrm{M}^{+}=0.2 \mathrm{~V}\) \(\frac{2.303 \mathrm{RT}}{\mathrm{F}}=0.059 \mathrm{~V}\)

  1. A \(2\)
  2. B \(6\)
  3. C \(8\)
  4. D \(3\)
Verified Solution

Answer & Solution

Correct Answer

(D) \(3\)

Step-by-step Solution

Detailed explanation

Overall reaction :- \(H _{2( g )}+ M _{( aq )}^{3+} \longrightarrow M _{( aq )}^{+}+2 H _{( aq )}^{+}\) \(E _{\text {Coll }}= E _{\text {Cathode }}^{\circ}- E _{\text {amode }}^{\circ}-\frac{0.059}{2} \log \frac{\left[ M ^{+}\right] \times 1^2}{\left[ M ^{+3}\right] 1}\)…
Same subject
Explore more questions on app
From JEE Mains
Explore more questions on app