NEET2005ChemistryIonic EquilibriumActual
NaOH (a q), HCl (a q), and NaCl (a q) concentration of each is 10⁻³ M . Their pH will be respectively
Options
- A10,6,2
- B11,3,7
- C10,3,7
- D10,4,7
Correct answer
B. 11,3,7
Step-by-step solution
Given OH ⁻ ion conc. is 10⁻³ M we know [ H ⁺ ] [ OH ⁻ ]=10⁻¹⁴ array cc or & [ H ⁺ ]= 10⁻¹⁴ 10⁻³ or & [ H ⁺ ]=10⁻¹¹ & pH =- [ H ⁺ ]=- [10⁻¹¹ ] array Similarly pH of HCl is 3 and pH of NaCl is 7.