An unknown substance turns methyl orange solution red. This shows that the substance is Answer:An unknown substance turns methyl orange solution red. This shows that the substance is acidic in nature. Explanation: You know that all the acid base indicators are usually weak type of acids and bases. They can change their color in the solution with change of the pH. Say HIn is an indicator , the dissociation can be shown as follows: HIn\rightleftharpoons H^++In^- H I n ⇌ H + + I n − Methyl orange is that kind of indicator that shows red color in acidic solution and yellow color in basic solution. Thus ,a n unknown substance turns methyl orange solution red. This shows that the substance is acidic in nature.
