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At 300 K and 1 atmospheric pressure, 10 mL of a hydrocarbon required 55 mL of O2 for complete combustion, and 40 mL of CO2 is formed. The formula of the hydrocarbon is : 

(1) C4H7Cl 

(2) C4H6 

(3) C4H8 

(4) C4H10

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Best answer

Correct option (2) C4H6


Hence. 1 mL of hydrocarbon = x mL of CO2 is produced

Hence the compound is C4H6

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