Question

In order for the reaction 2Al(s) + 6HCl(aq) →2AlCl3(aq) + 3H2(g) to occur, which of the following must be true?

a. Al must be above Cl on the activity series.
b. Al must be above H on the activity series.
c. Heat must be supplied for the reaction.
d. AlCl3 must be a precipitate.

Answer 1

Option b) Al must be above H on the activity series.

may be this is the right answer .