Q31. 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 g of glucose is : [Molar mass of glucose in $\mathrm { gmol } ^ { - 1 } = 180$ ]\\
(1) 480\\
(2) 800\\
(3) 960\\
(4) 32