JEE Main 20248 AprilMorning Shift

Exam: JEE Main
Year: 2024
Date: 8 April
Shift: Morning Shift
Subject: Chemistry
Chapter: Some Basic Concepts of Chemistry

JEE Main 2024 · 8 April · Morning Shift · Chemistry · Some Basic Concepts of Chemistry

Combustion of glucose ((C_6 H_ 12 O_6)) produces (CO_2) and water....

Combustion of glucose (\left(\mathrm{C}_6 \mathrm{H}_{12} \mathrm{O}_6\right)) produces (\mathrm{CO}_2) and water. The amount of oxygen (in g) required for the complete combustion of (900 \mathrm{~g}) of glucose is : [Molar mass of glucose in (\mathrm{g} \mathrm{mol}^{-1}=180) ]

Options

A480
B800
C960
D32

Correct answer

C. 960

Step-by-step solution

\begin{aligned} & \mathrm{C}_6 \mathrm{H}_{12} \mathrm{O}_{6(\mathrm{~s})}+6 \mathrm{O}_{2(\mathrm{~g})} \longrightarrow 6 \mathrm{CO}_{2(\mathrm{~g})}+6 \mathrm{H}_2 \mathrm{O}_{(\theta)} \\ & \frac{900}{180} \\ & =5 \mathrm{~mol} \quad 30 \mathrm{~mol}\end{aligned}

Mass of

\mathrm{O}_2

required

=30 \times 32=960 \mathrm{gm}

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