Question

What color change do you observe in the following cases and why?

1. On adding turmeric to soap


2. Blue litmus paper dipped in lemon juice.
3. China rose solution added with baking soda (base). ​

Answer 1

Explanation:

1. 1) red
2. reddish pink
3. green

maybe it's helpful for you ☺️

Answer 2

Answer:

(i)On adding turmeric to soap

Soap contains sodium hydroxide which is a base and turmeric contains a mild acid so whenever soap solution is added to the turmeric paste it will give reddish brown colour.

(ii)Blue litmus dipped in lemon juice

When blue litmus paper is dipped in lime juice, litmus paper turns red. Lime juice is acidic in nature because it contains an acid named citric acid. Like all other acids, lime juice also turns blue litmus red.

(iii)China Rose solution added with baking soda

A solution of china rose turns green in a basic solution, and bright pink or magenta in an acidic solution. ... baking soda when mixed with china rose indicator it turns green in color.