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JEE Main202224 Jun 2022Morning ShiftChemistrySome Basic Concepts of ChemistryActual

If a rocket runs on a fuel C 15 H 30 and liquid oxygen, the weight of oxygen required and CO 2 released for every litre of fuel respectively are : (Given : density of the fuel is 0 . 756 g / mL )

Options

  1. A1188   g and 1296   g
  2. B2376   g and 2592   g
  3. C2592   g and 2376   g
  4. D3429   g and 3142   g

Correct answer

C. 2592   g and 2376   g

Step-by-step solution

density = mass volume mass of C 15 H 30 = d × V = 0 . 756 × 1000 = 756   gram C 15 H 30 l + 45 2 O 2 g ⟶ 15 CO 2 g + 15 H 2 O Moles   of   C 15 H 30   =   756 210   Moles   of   O 2   used =   45 2 756 210   mole     Moles   of   CO 2   formed = 15 756 210 W O 2 = 45 2 756 210 32 = 2592   gram W CO 2 = 2376   gram

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