JEE Main 2022 · 26 Jun · Shift 2 · Chemistry Q81

← JEE Main 2022 · 26 Jun · Shift 2

ChemistryInteger+4 / -1Question 81 of 90

CNG is an important transportation fuel. When 100 g CNG is mixed with 208 g oxygen in vehicles, it leads to the formation of $\mathrm{CO_2}$ and $\mathrm{H_2O}$ and produces large quantity of heat during this combustion, then the amount of carbon dioxide, produced in grams is ______. [nearest integer]

[Assume CNG to be methane]

Your answer

Answer and worked solution

Official answer: 143

Moles. $\mathrm{CH_4}$ $\frac{100}{16}=6.25$ ; $\mathrm{O_2}$ $\frac{208}{32}=6.5$ .

Limiting. $\mathrm{CH_4+2O_2}$ : oxygen limits, giving $3.25$ mol $\mathrm{CO_2}=143$ g.

Answer: 143

Topics:Stoichiometry

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JEE Main 2022 · 26 Jun · Shift 2, Chemistry question 81