Question

10 mL of gaseous hydrocarbon on combustion gives 40 mL of \(CO_2(g)\) and 50 mL of water vapour. Total number of carbon and hydrogen atoms in the hydrocarbon is _____.

Answer 1

Correct answer is : 14

\(CxHy +\left(x+\frac {y}{4}\right)O_2 \rightarrow \underset {10x}{xCO_2}+\underset {5y}{\frac {y}{2}} H _2O\)

10x = 40 

x = 4 

5y = 50 

y = 10 

\(C_4 H_{10}\)