In the reaction `2Al(s)+6HCl(aq)to6Cl^(-)(aq)+3H_2`

Options

A. 6L HCl(aq) is consumed for every `3L H_(2) (g)` produced
B. `33.6 L H_(2) (g)` is produced regardless of temperature and pressure for every mole Al that reacts.
C. 67.2 L `H_(2) (g)` at STP is produced for every mole Al that reacts.
D. `11.2 L H_(2) (g)` at STP is produced for every mole HCl(aq) consumed.

Answer

D

Explanation

`2Al(s) + 6HCl (aq) to 2Al^(3-)(aq) + 6Cl^(-) (aq) + 3H_(2)(g)`
For each mole of HCl reacted, 0.5 mole of `H_(2)` gas is formed at STP. 1 mole of an ideal gas occupies 22.4 lit at STP. Volume of `H_2` gas formed at STP per mole of HCl
reacted is `22.4 xx 0.5` litre.