Two aqueous solutions P and Q have pH of 5 and 13 respectively. The correct inference is that:

Q. Two aqueous solutions P and Q have pH of 5 and 13 respectively. The correct inference is that:

1. solution P is of HCl and Q is of NH4OH
2. solution P is of CH3COOH and Q is of Ca(OH)2
3. solution P is of HNO3 and Q is of NH4OH
4. solution P is of CH3COOH and Q is of NaOH

Answer: solution P is of CH3COOH and Q is of NaOH