Three liquids are given to you. One is hydrochloric acid, another is sodium hydroxide and third is a sugar solution. How will you identify them? You have only turmeric indicator.
Answers
Answer:
Place a drop of each liquid on turmeric indicator. The solution which changes the colour of the indicator to red is basic in nature, i.e., it is sodium hydroxide. ... While the mixture which does not show any colour change in indicator contains hydrochloric acid which was neutralised on addition of sodium hydroxide.
Answer:
Turmeric will turn pinky-red in alkali, but is yellowish in both acid and neutral solutions. o test some of your three solutions with turmeric, and the one that turns the indicator pink is the sodium hydroxide solution. Now that you know which is NaOH, mix some of thi, separately with some of the other two solutions. The one that gets warmer is the HCl - the neutralisation of HCl with NaOH is exothermic. There is no (rapid) reaction of sugar solution with NaOH so it shouldn't change temperature by much.