Two solutions A1 and A2 have pH value of 2 and 6 respectively. It implies that the solution
A. A1 is more alkaline than solution A2
B. A1 is highly acidic
C. A1 is very slightly acidic
D. Both A & C
Answer: Option B
Solution (By Examveda Team)
The pH scale measures the acidity or alkalinity of a solution, ranging from 0 (most acidic) to 14 (most alkaline), with 7 being neutral.A solution with pH 2 (A₁) is strongly acidic, since it is much lower than 7.
A solution with pH 6 (A₂) is slightly acidic, as it is just below neutral.
Therefore, A₁ is highly acidic compared to A₂.
Option A is incorrect because A₁ is not alkaline at all, and Option C is incorrect because pH 2 indicates strong acidity, not slight acidity.
Hence, the correct interpretation is that A₁ is highly acidic.
This Question Belongs to Chemical Engineering >> Stoichiometry
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Related Questions on Stoichiometry
A. Potential energy
B. Intermolecular forces
C. Kinetic energy
D. Total energy
A. ΔH = 1 (+ ve)and Δ V = -ve
B. ΔH = 0
C. ΔV = 0
D. Both B and C
To analyze the pH values of the two solutions:
Solution A1 has pH = 2
Solution A2 has pH = 6
Interpretation:
A pH less than 7 indicates acidity.
The lower the pH, the stronger the acid.
The pH scale is logarithmic, meaning:
Each unit decrease in pH = 10× increase in hydrogen ion concentration
Each unit decrease in pH = 10× increase in hydrogen ion concentration
So:
A1 (pH = 2) is much more acidic than A2 (pH = 6).
A2 is only slightly acidic (close to neutral).
Saying A1 is more alkaline than A2 is incorrect, because A1 is far more acidic.
✅ Correct answer: B. A1 is highly acidic