Question

science lesson 2 acids and bases
Question :
what is the effect of basic substances on turmeric methyl orange and phenolphthalein ​

Answer 1

Answer:

Methyl orange acts as an indicator, to help us identify the acidic and basic medium by undergoing colour change. As the acidity of the solution decreases, the intensity of red colour decreases, the red colour changes to orange and orange turns yellow as the pH increases and acidity decreases.

Explanation:

Ionization and the Phenolphthalein Indicator

If hydrogen ions (H+, as found in an acid) were added to the pink solution, the equilibrium would switch, and the solution would be colorless. Adding hydroxide ions (OH-, as found in bases) will change the phenolphthalein into its ion and turn the solution pink.

Answer 2

When base react with :-

(i) Turmeric => turns to reddish brown.

(ii) Methyl orange => turns to yellow .

(iii) Phenolphthalein => turns to pink .