| ASSERTION: A certain charge is liberated by 10.8 g of Oxygen, 10.8 g of silver can liberate same amount of charge. |
| REASON: From Faraday's first law of electrolysis the amount of charge liberated is proportional to the mass of the substance taken. |
A) If both assertion and reason are true and reason is the correct explanation of assertion.
B) If both assertion and reason are true and reason is not the correct explanation of assertion.
C) If assertion is true but reason is false.
D) If both assertion and reason are false.
E) If assertion is false but reason is true.
Correct Answer: B
Solution :
According to Faraday's 1st law \[m=i\,\,z\,t=zq\]where z is electrochemical equivalent of the substance. Therefore, \[\frac{{{m}_{1}}}{{{m}_{2}}}=\frac{{{z}_{1}}}{{{z}_{2}}}=\frac{{{E}_{1}}}{{{E}_{2}}}\] \[\therefore \,\,\,\frac{0.8}{{{m}_{2}}}=\frac{8}{108},{{m}_{2}}=\frac{0.8\times 108}{8}\] \[=10.8\,\,g\]
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