The number of moles of methane required to produce 11g CO2(g) after complete combustion is: (Given molar mass of methane in g mol –1 : 16) (A) 0.75 (B) 0.25 (C) 0.35 (D) 0.5

Question

The number of moles of methane required to produce 11g CO2(g) after complete combustion is: (Given molar mass of methane in g mol –1 : 16)

(A) 0.75
(B) 0.25
(C) 0.35
(D) 0.5

Prashant Kotian · Accepted Answer

Correct answer: B. CnH2n+2 + 3n 2 + O2 → nCO2 + (n + 1)H2O CH4 + 2O2 → CO2 + 2H2O 4gm 11gm 0.25 mole 0.25 mole 0.25 mole CH4 gives 0.25 mole (or 11gm) CO2

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