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JEE Main levelSingle correct optionDifficulty 2 of 3mc189

of Al reacts with of HCl: . The volume of at STP (22.4 L/mol) is (Al = 27, H = 1, Cl = 35.5)

  1. A
  2. B
  3. C
  4. D

Answer: B

n(Al) = 0.20 mol (needs 0.60 mol HCl); n(HCl) = 0.50 mol, so HCl is limiting. H2 = (3/6) x 0.50 = 0.25 mol, volume = 0.25 x 22.4 = 5.60 L.
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