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

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

(a) methyl orange (3 to 4) 

(b) methyl red (5 to 6) 

(c) bromothymol blue (6 to 7.5) 

(d) phenolphthalein (8 to 9.6)

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1 Answer

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Best answer

The correct option (d) phenolphthalein (8 to 9.6)

Explanation:

Phenolphthalein is a good indicator if the base is strong, because strong base immediately changes the pH at end point.

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