In which of the following electrochemical cell overall cell reaction is -HgO s - H 2 g - Hg - H 2 O -A- Pt - H 2 g - H -aq -HgO s - Hg- - PtB- Pt - H 2 g - NaOH aq - HgO s - Hg- - PtC- Pt - H 2 g - H - N aOH aq - Hg O s - Hg- - PtD- Pt - H 2 g - H - HgO s -Hg- Pt

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Catalytic Hydrogenation

In which of t...

Question

In which of the following electrochemical cell overall cell reaction is :
$H g O (s) + H_{2} (g) \to H g (ℓ) + H_{2} O (ℓ)$

P t | H_{2} (g) | H^{+} (a q) | H g O (s) | H g (ℓ) | P t

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P t | H_{2} (g) | N a O H (a q) | H g O (s) | H g (ℓ) | P t

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P t | H_{2} (g) | H^{+} | | N a O H (a q) | H g O (s) | H g (ℓ) | P t

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P t | H_{2} (g) | H^{+} | | H g O (s) | H g (ℓ) | P t

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Solution

The correct option is B $P t | H_{2} (g) | N a O H (a q) | H g O (s) | H g (ℓ) | P t$
$P t | H_{2} (g) | N a O H (a q) | H g O (s) | H g (ℓ) | P t$
LHE reaction : $H_{2} (g) + 2 O H^{-} \to 2 H_{2} O (ℓ) + 2 e$
RHE reaction : $H g O (s) + H_{2} O (ℓ) + 2 e \to H g (ℓ) + 2 O H^{-}$
Net cell reaction : $H g O (s) + H_{2} (g) \to H g (ℓ) + H_{2} O$

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Similar questions

Q. In which of the following electrochemical cell overall cell reaction is :

H g O (s) + H_{2} (g) \to H g (l) + H_{2} O (l)

Q. The potential of the cell containing two hydrogen electrodes as represented below, is:

P t, H_{2 (g)} | H^{+} (10^{- 6} M) | | H^{+} (10^{- 4} M) | H_{2 (g)}, P t

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Pt, H2/H+(C1M)(aq) || H2(C2M)(aq)/H2(g) , Pt

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Q. Determine the potential of the following cell:

P t | H_{2} (g, 0.1 b a r) | H^{+} (a q, 10^{- 3} M) | | M n O_{4}^{-} (a q, 0.1 M)

M n^{2 +} (a q, 0.01 M), H^{+} (a q, 0.01 M) | P t

Given,

E_{M n O_{4}^{-} | M n^{2 +}}^{\circ} = 1.51 V

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In which of the following electrochemical cell overall cell reaction is : HgO(s)+H2(g)→Hg(ℓ)+H2O(ℓ)

The correct option is B Pt|H2(g)|NaOH(aq)|HgO(s)|Hg(ℓ)|PtPt|H2(g)|NaOH(aq)|HgO(s)|Hg(ℓ)|Pt LHE reaction : H2(g)+2OH−→2H2O(ℓ)+2e RHE reaction : HgO(s)+H2O(ℓ)+2e→Hg(ℓ)+2OH− Net cell reaction : HgO(s)+H2(g)→Hg(ℓ)+H2O

In which of the following electrochemical cell overall cell reaction is :
$H g O (s) + H_{2} (g) \to H g (ℓ) + H_{2} O (ℓ)$