NEET2018Chemistry-Acids and Bases
NEET 2018 Chemistry pH Calculations MCQ Question
Type: MCQ-numerical-Medium-Class 11
Following solutions were prepared by mixing different volumes of NaOH and HCl of different concentrations:
i. 60 mL 10 M HCl + 40 mL 10 M NaOH
ii. 55 mL 10 M HCl + 45 mL 10 M NaOH
iii. 75 mL 5 M HCl + 25 mL 5 M NaOH
iv. 100 mL 10 M HCl + 100 mL 10 M NaOH
pH of which one of them will be equal to 1?
A
ii
B
i
C
iv
D
iii
Correct Answer
Option D
Detailed Explanation
The pH is equal to 1 when the concentration of H⁺ ions is 0.1 M. In option i, the solution is neutralized, leaving an excess of H⁺ ions from the HCl, resulting in a pH of 1.
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