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

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The best indicator for the detection of end point in titration of a weak acid and a strong base is :
(a) Methyl orange (3.1 to 4.4)
(b) Methyl red (4.2 to 6.3)
(c) Bromothymol blue (6 to \( 7.6 \) )
(d) Phenolphthalein (8.2 to 10 )
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