Question

Following solutions were prepared by mixing different volumes of NaOH and HCl of different concentrations :

1. $60ml\frac{M}{10}HCL+40ml\frac{M}{10}NaOH$
2. $55ml\frac{M}{10}HCL+45ml\frac{M}{10}NaOH$
3. $75ml\frac{M}{5}HCL+25ml\frac{M}{5}NaOH$
4. $100ml\frac{M}{10}HCL+100ml\frac{M}{10}NaOH$

pH of which one of them will be equal to 1 ?

• A. b
• B. d
• C. a
• D. c

Answer 1

Answer: (D)

c

Answer 2

The correct option is (D): c