Following solutions were prepared by mixing different volumes of NaOH and HCl . pH of which one of them will be equal to 1 ? - Chemistry MCQ NEET (UG) 2018 2026 | ExamTest.live

hardMCQNEET (UG) 20182026Chemistry

1 mark

Following solutions were prepared by mixing different volumes of NaOH and HCl . p H of which one of them will be equal to 1 ?

Solution & Step-by-step Explanation

For p H = 1, [H^{+}] = 1 0^{- 1} = 0.1 M .Checking Option D:Millimoles of HCl = 75 \times (1/5) = 15 .Millimoles of NaOH = 25 \times (1/5) = 5 .Excess HCl = 15 - 5 = 10 mmol.Total Volume = 75 + 25 = 100 mL . [H^{+}] = \frac{10 mmol}{100 mL} = 0.1 M . p H = - lo g (0.1) = 1 .

Try it yourself before checking the explanation above.

Following solutions were prepared by mixing different volumes of NaOH and HCl . p H of which one of them will be equal to 1 ?

100 mL M /10 HCl + 100 mL M /10 NaOH

60 mL M /10 HCl + 40 mL M /10 NaOH

55 mL M /10 HCl + 45 mL M /10 NaOH

75 mL M /5 HCl + 25 mL M /5 NaOH

Practice with timed mock tests and track your performance across Chemistry.