Answer : The volume of
consumed are,
L.
Explanation :
The balanced chemical reaction will be:

First we have to calculate the moles of Al.

Molar mass of Al = 27 g/mole

Now we have to calculate the moles of
.
From the reaction we conclude that,
As, 4 mole of Al react with 3 moles of 
So, 2 mole of Al react with
moles of 
Now we have to calculate the volume of
consumed.
As we know that, 1 mole of substance occupies 22.4 liter volume of gas.
As, 1 mole of
occupies 22.4 liter volume of
gas
So,
mole of
occupies
liter volume of
gas
Therefore, the volume of
consumed are,
L.