Which of the following indicators (buffer range provided in brackets) cannot be used to detect end point of…
Which of the following indicators (buffer range provided in brackets) cannot be used to detect end point of titration between strong acid and strong base?
Trinitrobezene \((12.0\) to \(14.0)\)
Phenol red \((6.0\) to \(7.6)\)
\(p\)-Nitrophenol \((5.0\) to \(7.0)\)
Phenolphthalein \((8.3\) to \(10.0)\)
Solution
Indicator range of trinitrobenzene is beyond the steep portion of \(\mathrm{pH}\) near the equivalence point.
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