At 25 o C , p H range of phenolphthalein is 8 - 10 . At 100 o C , pH range of phenolphthalein would be -

Question

At 25 o C , p H range of phenolphthalein is 8 - 10 . At 100 o C , pH range of phenolphthalein would be -, pH range remain unaffected by the temperature, pH range is altered to 7 - 9, pH range is altered to 7 - 11, pH range is altered to 8 - 11

MARKS App · Accepted Answer

The pH range of the indicator is p K I n ± 1 . On increase in temperature p K I n decreases therefore pH range of indicator decreases.

Search any question & find its solution

Looking for more such questions to practice?