Question

8. Which of the following statements is correct.
O Acids turn blue litmus red
O Bases turn red litmus blue
Water changes the colour of a litmus
O Both (A) and (B)​

Answer 1

Answer:

both (A) and(B)

Blue litmus paper turns red under acidic conditions and red litmus paper turns blue under basic (i.e. alkaline) conditions. The pigment in blue litmus reacts with H+ ions and changes chemically so the bonds are 'tuned' to reflect a longer wavelength of light to appear red to our eyes.

Answer 2

Answer:

both (A) and(B)

Explanation:

Blue litmus paper turns red under acidic conditions and red litmus paper turns blue under basic (i.e. alkaline) conditions. The pigment in blue litmus reacts with H+ ions and changes chemically so the bonds are 'tuned' to reflect a longer wavelength of light to appear red to our eyes.