ACIDS, BASES and SALTS
302985
Paheli Is Writing Some Statements. She Wants To Know In Which Of The Following Statements Is Or Are Incorrect?
1 Phenolphthalein indicator is natural acid base indicator.
2 Phenolphthalein indicator is colourless in acid solution.
3 Phenolphthalein indicator is gives pink colour in basic solution.
4 The substance whose solution do not change the colour of any indicator, called neutral substances.
Explanation:
Phenolphthalein indicator is natural acid base indicator.