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Chemistry : Electrochemistry
Short Answer Type
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181.
Write the Nernst equation and emf of the following cells at 298 k.
Mg(s) | Mg
2+
(0.001 M) || Cu
2+
(0.0001 M) | Cu(s)
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182.
Write the Nernst equation and emf of the following cells at 298 k.
Fe(s) | Fe
2+
(0.001 M) || H
+
(1M) | H
2
(g) (1 bar) | Pt(s)
174 Views
183.
Write the Nernst equation and emf of the following cells at 298 k.
Sn(s) | Sn
2+
(0.050 M) || H
+
(0.020 M) H
2
(g)
(1bar) Pt (s)
324 Views
184.
Write the Nernst equation and emf of the following cells at 298 k.
Pt(s) | Br
2
(l) |
Br
–
(0.010 M) || H
+
(0.030 M) | + H
2
(g) (1 bar) | Pt(s).
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185.
What is corrosion? What are the factors which affect corrosion?
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186.
CO
2
is always present in natural water. Explain its effect (increases, stops or no effect) on rusting of iron.
545 Views
187.
Rusting of iron is quicker in saline water than in ordinary water. Explain.
697 Views
188.
We can use aluminium in place of zinc for cathodic protection of rusting. Comment.
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189.
How is cathodic protection of Iron different from its galvanisation?
185 Views
Long Answer Type
190.
Define conductivity and molar conductivity for the solution of an electrolyte. Discuss their variaion with concentration.
419 Views
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