Yes, it is.
When water is added to phenolphthalein, the color remains the same, which is colorless. Phenolphthalein is typically used as an indicator in titrations with strong acid and strong base where the color change is triggered by changes in pH, not by the addition of water.
The color is pink with phenolphthalein.
When lime water (a solution of calcium hydroxide) is mixed with phenolphthalein, the solution turns pink. This occurs because phenolphthalein is a pH indicator that changes color in basic solutions. Lime water is alkaline, so it causes the phenolphthalein to shift from colorless to pink in the presence of a base.
homogenous.
Phenolphthalein dissolves in water because it is a water-soluble compound. The molecule has hydroxyl groups that can form hydrogen bonds with water molecules, allowing it to dissolve readily in water. Additionally, phenolphthalein is often used as a pH indicator in aqueous solutions due to its solubility in water.
Water and oil is a heterogeneous mixture. Oil can be separated from water via specific methods. That's why a combination of water and oil is heterogeneous.
When a drop of phenolphthalein is introduced in lime water the solution turns pink in colour.
A simple water accordingly is a Heterogeneous mixture.
Ammonia gas get dissolved in water which form ammonium hydroxide. NH4OH is alkaline in nature. so when phenolphthalein is added to it. It produce PINK colouration.
Nothing, it is insoluble in water surface.
Phenolphthalein is colorless in tap water, as tap water is typically neutral to slightly acidic. It only turns pink in basic solutions with a pH above 8.2.
River water is generally a heterogeneous mixture based on the different components it is carrying. Water by definition is not an element, rather a molecule comprised of them.