1.

The best indicator for detection of end point in titration of a weak acid and a strong base is

Answer»

Methyl orange (3 to 4)
Methyl red (5 to 6)
Bromothymol blue (6 to 7.5)
Phenolphthalein (8 to 9.6)

Solution :The pH of the solution at the EQUIVALENCE point will be GREATER than 7 due to salt hydrolysis. So an indicator giving colour on the basic SIDE will be suitable.


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