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AP EAMCET · Chemistry · Electrochemistry

96.5 amperes current is passed through the molten \(\mathrm{AlCl}_3\) for 100 seconds. The mass of aluminium deposited at the cathode is (atomic weight of \(\mathrm{Al}=27 \mathrm{u}\) )

  1. A \(0.90 \mathrm{~g}\)
  2. B \(0.45 \mathrm{~g}\)
  3. C \(1.35 \mathrm{~g}\)
  4. D \(1.8 \mathrm{~g}\)
Verified Solution

Answer & Solution

Correct Answer

(A) \(0.90 \mathrm{~g}\)

Step-by-step Solution

Detailed explanation

Given, \(I=96.5 \mathrm{~A}\) \(t=100 \mathrm{~s}\) \(\Rightarrow \quad m=?\) Atomic weight of \(\mathrm{Al}=27 \mathrm{u}\) \(Q=I \times t=96.5 \times 100\) \(=9650 \mathrm{C}\)…