Question 1:State the differences between acids and bases.

Answer: – Acids Bases (i) These are sour to taste. These are bitter to taste. (ii) Acids turn blue litmus red. Bases do not change the colour of blue litmus. (iii)Acids do not change the colour of red litmus. Bases turn red litmus blue. (iv) With china rose indicator, these give dark pink colour. Bases give green colour with china rose indicator. (v) Acids do not change the colour of turmeric indicator. Bases turn the colour of turmeric indicator to red.