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प्रश्न
An aqueous solution ‘A’ turns the phenolphthalein solution pink. On addition of an aqueous solution ‘B’ to ‘A’, the pink colour disappears. Which of the following statement is true for the solutions ‘A’ and ‘B’.
विकल्प
A is strongly basic and B is a weak base.
A is strongly acidic and B is a weak acid.
A has a pH greater than 7 and B has a pH less than 7.
A has a pH less than 7 and B has a pH greater than 7.
MCQ
उत्तर
A has a pH greater than 7 and B has a pH less than 7.
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