Write the effect of dilute hydrochloric acid on the colour of each one of the following indicators?
Phenolphthalein
Write the effect of dilute hydrochloric acid on the colour of each one of the following indicators?
Phenolphthalein
1. Acid-base indicators
Acid-base indicators are substances that can be used for the identification of a solution, whether it is acidic, neutral, or alkaline. They are also known as pH indicators. Some examples are litmus paper, phenolphthalein, and red cabbage juice.
2. Effect of dilute Hydrochloric acid on phenolphthalein
Phenolphthalein is an acid-base indicator. In an acidic solution, it exhibits no colour (colourless). In the basic solution, the colour of phenolphthalein changes to pink.
The given solution is dilute hydrochloric acid (HCl), which is a strong acid. Since it is acidic in nature, phenolphthalein remains colourless in acidic solutions. So, HCl solution has no effect on phenolphthalein solution.
Thus, the addition of dilute Hydrochloric acid will cause no effect on the colour of phenolphthalein.
1. Acid-base indicators
Acid-base indicators are substances that can be used for the identification of a solution, whether it is acidic, neutral, or alkaline. They are also known as pH indicators. Some examples are litmus paper, phenolphthalein, and red cabbage juice.
2. Effect of dilute Hydrochloric acid on phenolphthalein
Phenolphthalein is an acid-base indicator. In an acidic solution, it exhibits no colour (colourless). In the basic solution, the colour of phenolphthalein changes to pink.
The given solution is dilute hydrochloric acid (HCl), which is a strong acid. Since it is acidic in nature, phenolphthalein remains colourless in acidic solutions. So, HCl solution has no effect on phenolphthalein solution.
Thus, the addition of dilute Hydrochloric acid will cause no effect on the colour of phenolphthalein.
