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Most Important Selected Qs for JEE AdvancedChemistrySome Basic Concepts of Chemistry

5 ml of a gaseous hydrocarbon ( C _ x H _y ) was exploded with 30 ml of oxygen. The resulting gas on cooling to room temperature is found to measure 25 ml of which 10 ml are absorbed by NaOH and the remainder by pyrogallol. The value of x+y is?

Correct answer

6

Step-by-step solution

aligned & 5 x=10, x=2 & 5 (x+ y 4 )=15 & y=4 aligned Formula of hydrocarbon = C _ x H _ y x+y=2+4=6

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