Question
Asked in: JEE Main-2003
What volume of hydrogen gas, at 273 K and 1 atm pressure will be consumed in obtaining 21.6 g of elemental boron (atomic mass = 10.8) from the reduction of boron trichloride by hydrogen?
A.
89.6 L
B.
67.2 L
C.
44.8 L
D.
22.4 L.
Moles of boron ,
Therefore, moles of consumed =
Therefore, volume of at NTP =
Answer: B.