Question

the indicator thymol blue has two color transitions as indicated in the table. thymol blue indicator colors acid color ph transition range base color red 1.2 - 2.8 yellow yellow 8.0 - 9.6 blue select the color expected when thymol blue is added to solutions having the given ph values. ph 1 red yellow blue orange green ph 2 yellow red blue orange green ph 6 red blue yellow orange green ph 10 yellow blue red orange green

Explanation:

Step1: Check pH 1 range

Since 1 < 1.2, it's in first acid - range. Color is red.

Step2: Check pH 2 range

1.2 < 2 < 2.8, it's in first transition - range. Color is yellow.

Step3: Check pH 6 range

2.8 < 6 < 8.0, it's in the non - transition range between the two transitions. Color is yellow.

Step4: Check pH 10 range

8.0 < 10 < 9.6, it's in second transition - range. Color is blue.

Answer:

pH 1: A. red
pH 2: A. yellow
pH 6: C. yellow
pH 10: B. blue