defence exam Indian Army Nursing Assistant Mock Test Series 2025 General Science Chemistry Equilibrium
There are three test tubes A, B and C, all having colorless liquid of equal volume and strength. A drop of Phenolphthalein is added to each of them. It is observed that test tubes A and B remain colorless while C becomes pink. When the pink solution of C is added to A and B, it is observed that A remains colorless but B attains pink color. Which of the following is correct inference?
1
A = Strong Acid B = Strong Base C = Weak Acid
2
A = Weak Acid B = Strong Acid C = Strong Base
3
A = Strong Acid B = Weak Acid C = Strong Base
4
A = Strong Acid B = Weak Acid C = Weak Base