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Twenty millilitres of a gaseous hydrocar...

Twenty millilitres of a gaseous hydrocarbon required 400 ml of air for complete combustion. The air contains 20% by volume of oxygen. The volume of gaseous mixture after explosion and cooling was found to be 380 ml.
Volume of `O_(2)` used is

A

70ml

B

75ml

C

80ml

D

85ml

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • Twenty millilitres of a gaseous hydrocarbon required 400 ml of air for complete combustion. The air contains 20% by volume of oxygen. The volume of gaseous mixture after explosion and cooling was found to be 380 ml. Volume of CO_(2) is

    A
    40 ml
    B
    60 ml
    C
    80 ml
    D
    100 ml

  • Twenty millilitres of a gaseous hydrocarbon required 400 ml of air for complete combustion. The air contains 20% by volume of oxygen. The volume of gaseous mixture after explosion and cooling was found to be 380 ml. Volume of residual nitrogen is

    A
    300 ml
    B
    310 ml
    C
    320 ml
    D
    330 ml

  • Twenty millilitres of a gaseous hydrocarbon required 400 ml of air for complete combustion. the air contains 20% by volume of oxygen. The volume of gaseous mixture after explosion and cooling was found to be 380 ml. Volume of residual nitrogen is

    A
    300ml
    B
    310ml
    C
    320ml
    D
    330ml

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