BPSC – Combined Competitive Examination · ప్రశ్న 131
The pH value of a 0.1 N HCl solution is approximately:
సమాధానం చూపించు & వివరణ
సమాధానం: (A) 1.0
వివరణ
HCl fully ionises, so [H⁺] = 0.1 mol/L and pH = 1.
- (A) సరైనది
Correct: [H⁺] = 0.1 M, so pH = −log(0.1) = 1.
- (B) తప్పు
Wrong: pH 11 is basic; HCl is a strong acid.
- (C) తప్పు
Wrong: pH 10 is basic.
- (D) తప్పు
Wrong: pH 2 would be 0.01 M HCl.