NEET Questions Solved


What volume of  oxygen gas (O2) measured at 0°C and 1 atm, is needed to burn completely 1L of  propane gas (C3H8) measured under the same conditions?

(a) 7L 

(b) 6L

(c) 5L

(d) 10L

(c) C3H8 + 5O2  3CO2+ 4H2O

22.4L   5x22.4L

For the combustion of 22.4L propane, oxygen required = 5 x 22.4L

For  the combustion of 1L of propane oxygen required = 5x22.4/22.4L

=5L

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