Question

What color changes can be observed when red cabbage juce is and methyl orange each tested frist with lemon juice
And then with detergent

Answer 1

Answer:

we know that acid on reacting with red cabbage will give us purple colour,

so lemon juice contain citric acid so it  reacting with red cabbage will give us purple colour.

for methyl orange on reacting up with acid it will give red colour,so lemon juice and methyl orange will give us red colour.

after this reaction when we add detergent,

purple color of red cabbage will retain its orginal colour,[remember that base with red cabbage gives no colour]

red colour of methyl orange will change to its orginal colour,[ base on reacting with methyl orange give yellow colour]

Explanation:

Answer 2

Answer:

As we know that lemon is a kind of acid,so the reaction between red cabbage juice and lemon juice will give us pink or red color.Same,the reaction between methyl orange and lemon juice will give us pink or red color.