1.

About 2 mL of acetic acid was taken in each of the three test tubes P, Q and R and 5 mL, 10 mL and 15 mL of distilled water were added to them, respectively. Instantaneously, a clear solution is observed in the test tubes _______.(A) P and Q only                (B) Q and R only(C) R and P only                 (D) P, Q and R

Answer» (D) P, Q and R


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