1
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Which of the following salts will give highest pH in water?
2
NEET 2013 (Karnataka)
MCQ (Single Correct Answer)
+4
-1
The dissociation constant of weak acid is 1 $$ \times $$ 10$$-$$4. In order to prepare a buffer solution with a pH = 5, the [Salt]/[Acid] ratio should be
3
NEET 2013 (Karnataka)
MCQ (Single Correct Answer)
+4
-1
At 100oC the Kw of water is 55 times its value at 25oC. What will be the pH of neutral solution? (log 55 = 1.74)
4
NEET 2013 (Karnataka)
MCQ (Single Correct Answer)
+4
-1
The values of Ksp of CaCO3 and CaC2O4 are 4.7 $$ \times $$ 10$$-$$9 and 1.3 $$ \times $$ $$-$$9 respectively at 25oC. If the mixture of these two is washed with water, what is the concentration of Ca2+ ions in water ?
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