TS EAMCET · Chemistry · Electrochemistry
Electrolysis of aqueous \(\mathrm{Na}_2 \mathrm{SO}_4\) was carried out by passing a current of 3 ampere for \(10 \mathrm{~min}\). The volume of the gas (L) at STP at the anode of the cell is approximately
- A 0.19
- B 2.1
- C 0.1
- D 0.15
Answer & Solution
Correct Answer
(C) 0.1
Step-by-step Solution
Detailed explanation
The possible chemical reaction at the anode \[ 2 \mathrm{H}_2 \mathrm{O}(\mathrm{l}) \rightarrow \mathrm{O}_2 \uparrow+4 \mathrm{H}^{+}(\mathrm{aq})+4 \mathrm{e} \] Total charges passing through the solution \(=3 \times 10 \times 60 \mathrm{c}=1800 \mathrm{c}\)…
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