If all volumes are measured at the same temperature and pressure, the volume of N2O required to give 150cm3 of steam is:
A
200 cc
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B
150 cc
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C
420 cc
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D
300 cc
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Solution
The correct option is D 300 cc Reaction: 4N2O+CH4→CO2+2H2O+4N2 4 1 1 2 4 4 volumes of N2O will give 2 volumes of steam. So, 300 cc of N2O will give 150 cc steam.