Question

identify odd one out according to types of indicator between litmus,methyl orange, phenolphthalein and universal indicator

Answer 1

the answer is litmus

Answer 2

Hi thank you for asking the question.
Litmus paper is the odd one out 
Because
Litmus is solid in paper form and is used to check the pH of solution through color change
Methyl orange Phenolphtalein and universal indicator all are all liquid and are used to check the tiitration between acid and base
Hope this answer helps you 
If it did kindly mark the answer as brainliest
Thank you