You have an unknown metal, X. You conduct two experiments. The results are shown in the table below.
X(s) + NaCl(aq) ---- no reaction
X(s) + ZnCl2(aq) ---- reaction of metal
Which of the following statements is a logical conclusion based on the experimental data?
a) Metal X is a halogen.
b) Metal X is more reactive than sodium (Na).
c) Metal X is less reactive than zinc (Zn).
d) Metal X is a noble gas.