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JEE Main202226 Jun 2022Evening ShiftChemistrySome Basic Concepts of ChemistryActual

The moles of methane required to produce 81 g of water after complete combustion is____ × 10 - 2 mol . [nearest integer]

Correct answer

0

Step-by-step solution

CH 4 + 2 O 2 ⟶ CO 2 + 2 H 2 O POAC on H atom nCH 4 × 4 = nH 2 O × 2 nCH 4 = 81 18 × 2 × 1 4 = 81 36 nCH 4 = 2 . 25 = 225 × 10 - 2 Hence, the number of moles of methane is 225 × 10 - 2

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