Verified Solution • 2025–26 Session moderate

QJEEM24Chaa0b: JEE Main 2024 Chemistry - Class 11 JEEM24Chaa0b Solution: Combustion of glucose ( C 6 H 12 O 6 ) produces CO 2 and water. …

Combustion of glucose (C6H12O6) produces CO2 and water. The amount of oxygen (in g) required for the complete combustion of 900 g of glucose is :

[Molar mass of glucose in g mol−1=180]

Multiple Choice Options

  • A 32
  • B 480
  • C 800
  • D 960

Step-by-Step Verified Solution

To determine the amount of oxygen required for the complete combustion of 900 g of glucose, we need to follow these steps:

First, let's write the balanced chemical equation for the combustion of glucose (C6H12O6):

C6H12O6+6O2→6CO2+6H2O

From the balanced equation, we see that 1 mole of glucose reacts with 6 moles of oxygen (O2).

Next, let's calculate the number of moles of glucose in 900 g. The molar mass of glucose is given as 180 g mol−1.

Number of moles of glucose = 900 g180 g mol−1=5 mol

According to the balanced equation, 1 mole of glucose requires 6 moles of oxygen. Therefore, 5 moles of glucose will require:

Number of moles of oxygen = 5 mol×6=30 mol

Now, we need to find the mass of 30 moles of oxygen. The molar mass of oxygen (O2) is 32 g mol−1.

Mass of oxygen = 30 mol×32 g mol−1=960 g

Therefore, the amount of oxygen required for the complete combustion of 900 g of glucose is 960 g.

So, the correct option is Option D: 960.

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