Answer:
The stoichiometric coefficient of aluminium is 2 that is option B is correct.
Explanation:
Stoichiometric coefficient is the numeral coming or written before the symbol of compound or an element in balanced chemical reaction equation.
[tex]3Ca + 2AIPO_4 \rightarrow 2Al + Ca_3(PO_4)_2[/tex]
According to stoichiometry, 3 moles of calcium reacts with 2 moles of aluminum phosphate to give 2 moles of aluminium and 1 mole of calcium phosphate.
The stoichiometric coefficient of calcium is = 3
The stoichiometric coefficient of aluminum phosphate = 3
The stoichiometric coefficient of aluminium = 2
The stoichiometric coefficient of calcium phosphate = 1
