At `25^(@)C pH` range of phenolphthalein is `8-10`. At `100^(@)C pH` range of phenophthalein would be

At `25^(@)C pH` range of phenolphthalein is `8-10`. At `100^(@)C pH` r

1.	At `25^(@)C pH` range of phenolphthalein is `8-10`. At `100^(@)C pH` range of phenophthalein would be
Answer» Correct Answer - B The `pH` range of the indicator is `pK_("in")+1`. On increase in temperature, `pK_("in")` decreases therefore `pH` range of indicator decreases.

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At `25^(@)C pH` range of phenolphthalein is `8-10`. At `100^(@)C pH` range of phenophthalein would be

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