Consider the following equations which may constitute individual steps in the fo

Question

Consider the following equations which may constitute individual steps in the formation of solid aluminum chloride (AlCl3) from solid aluminum and chlorine gas, according to the following equation:   2 Al(s) + 3 Cl2(g) -------> 2 AlCl3 (s):

a.   2 Al (s) + 6 HCl (aq) -------> 2 AlCl3 (aq)   + 3 H2 (g)
b. AlCl3 (s) -------> AlCl3 (aq)
c.   H2 (g)   +   Cl2 (g) ------>   2 HCl (g)
d.   HCl (g)   --------->   HCl (aq)

Which of the following should not be included in a sequence of steps which would result in the desired reaction equation?
  

Explanation / Answer

the ans is

b. AlCl3 (s) -------> AlCl3 (aq)

this equation is producing aqueous AlCL3 from solid AlCl3 which is not desired

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