Why is HCl a stronger acid than HCOOH despite identical pH?

0.010M HCl = pH 2.0 ; 0.10 M HCOOH = pH 2.0

*Why is HCl a strong acid than HCOOH despite the fact that both these acid solutions have identical pH (pH 2.0). Explain.

*The pH of .01 M HCl is 1.0. The pH reading is theoretically impossible and therefore in error. Explain.
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