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Aluminum carbide A l 4 C 3 liberates methane on treatment with water. The grams of aluminum carbide required to produce 11 .2 L of methane under STP conditions is [Given Al = 27 ]

Options

  1. A48
  2. B72
  3. C144
  4. D24

Correct answer

D. 24

Step-by-step solution

A l 4 C 3 + 12 H 2 O → 3 C H 4 + 4 A l O H 3 So 67 .2 L C H 4 evolved by 144 g A l 4 C 3 11 .2 L C H 4 will be evolved = 144 67.2 × 11.2 = 24 g

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