Indicators

Question 1

What is Methyl Red’s Colour change and approximate pH range?

Answer 1

Pink- yellow

4.4 - 6.2

Question 2

What is Bromothymol’s Colour change and approximate pH range?

Answer 2

yellow -> green ->blue

6.0- 7.6

Question 3

What is Phenolphthalein’s Colour change and approximate pH range?

Answer 3

colourless to pink

8.3-10

Question 4

What is Methyl orange’s Colour change and approximate pH range?

Answer 4

red -> orange -> yellow

3.1 - 4.4

Question 5

What is Litmus solution’s Colour change and approximate pH range?

Answer 5

Red -> purple -> blue

5.0-8.0