4) Which indicator, when added to a solution, changes color from yellow to blue as the pH of the

solution is changed from 5.5 to 8.0?

a bromcresol green

b) Litmus

c) bromthymol blue

d) methyl orange

Question

Chemistry

Guest

12 September, 11:13

4) Which indicator, when added to a solution, changes color from yellow to blue as the pH of the

solution is changed from 5.5 to 8.0?

a bromcresol green

b) Litmus

c) bromthymol blue

d) methyl orange

+5

Answers (1)

Know the Answer?

Gideon Long · Answer 1

c) bromthymol blue

Explanation:

An acidic solution has a pH value less than 7, while the pH is 7 for a neutral solution and grater than 7 for a basic solution.

Bromothymol blue is a pH indicator which is yellow in color when placed in an acid (pH under 7), the color is green in a neutral solution (pH of 7) and blue in an basic solution (pH over 7).

If bromthymol blue is added to a solution with an initial pH of 5.5 (acidic), the color would be yellow and as the pH changes to 8 (basic), the color changes to blue.

4) Which indicator, when added to a solution, changes color from yellow to blue as the pH of thesolution is changed from 5.5 to 8.0?a bromcresol greenb) Litmusc) bromthymol blued) methyl orange

4) Which indicator, when added to a solution, changes color from yellow to blue as the pH of the

solution is changed from 5.5 to 8.0?

a bromcresol green

b) Litmus

c) bromthymol blue

d) methyl orange