JEE Mains · Chemistry · STD 12 - 2. Electrochemistry
The mass of silver (Molar mass of \(\mathrm{Ag}: 108\ \mathrm{gmol}^{-1}\) ) displaced by a quantity of electricity which displaces \(5600 \mathrm{~mL}\) of \(\mathrm{O}_2\) at \(S.T.P.\) will be_____________\( g.\)
- A \(108\)
- B \(159\)
- C \(189\)
- D \(148\)
Answer & Solution
Correct Answer
(A) \(108\)
Step-by-step Solution
Detailed explanation
Eq. of \(\mathrm{Ag}=\) Eq. of \(\mathrm{O}_2\) Let \(\mathrm{x}\) gm silver displaced, \(\frac{\mathrm{x} \times 1}{108}=\frac{5.6}{22.7} \times 4\) (Molar volume of gas at STP \(=22.7\) lit) \(\mathrm{x}=106.57 \mathrm{gm}\) Ans. \(107\) OR, as per old STP data, molar volume…
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