Base turns red litmus blue and acids turns blue litmus red. A student tested a liquid with a red litmus paper, and it stayed red with no change. This shows that the liquid:

Which of the following acids is a mineral acid?

Boric acid is an acid because its molecule

Match List $\mathrm{I}$ & List $\mathrm{II}$ and select the correct answer using the codes given below the lists.

Turmeric (haldi) rapidly becomes red on the addition of ____.

Match List $\mathrm{I}$ with List $\mathrm{II}$ and select the correct answer using the codes given below the lists.