What will you observe when :1) red litmus is introduced in solution of sodium sulphate. 2) methyl orange is added to dil hcl 3) blue litmus is introduced in the solution of ferris chloride?
Answers
2 becomes pink
3 no change
Answer :
(1) red litmus turns blue
(2) The color of HCl is red with methyl orange
(3) blue litmus turns red
Explanation :
Indicators : It is measures the acidity and basicity of solution.
Red litmus paper :
When the solution is acidic, there is no color change in red litmus paper.
When the solution is basic, the color changes to blue in red litmus paper.
Methyl orange :
When the solution is acidic, the color changes to red with methyl orange.
When the solution is basic, the color changes to yellow with methyl orange.
Blue litmus paper :
When the solution is acidic, the color changes to red in blue litmus paper.
When the solution is basic, there is no color change in blue litmus paper.
(1) When red litmus is introduced in solution of sodium sulfate, the color changes to blue in red litmus paper because sodium sulfate is a base.
(2) When methyl orange is added to dil. HCl, the color changes to red with methyl orange because HCl is an acid.
(3) When blue litmus is introduced in the solution of ferric chloride, the color changes to red in blue litmus paper because ferric chloride is acidic in nature.