Describe the pH of the solutions given the indicator colors and arrange them by acidity. Also, list indicator colors in different pH solutions.

The indicator turns orange in acidic, greenish in neutral, and bluish in alkaline solutions.

• Glucose: Green $\rightarrow$ Neutral
• Rain water: Pale or Orange $\rightarrow$ Slightly acidic to acidic
• Lime water: Blue $\rightarrow$ Basic
• Vinegar: Orange $\rightarrow$ Acidic
• Stomach powder: Pale Blue $\rightarrow$ Slightly basic

Here are the colors of the specified indicators in neutral, base, and acid solutions:

Indicators	Neutral solution	Base solution	Acid solution
Methyl orange	Orange	Yellow	Red
Methyl green	Green	Blue	Yellow
Phenolphthalein	Colorless	Pink	Colorless
Thymol blue	Yellow	Blue	Yellow
Bromothymol blue	Green	Blue	Yellow
Methyl red	Orange	Yellow	Red
Cresol red	Yellow/Orange	Violet	Yellow
Litmus	Purple	Blue	Red

Here are suitable indicators for the given types of titrations:

Analytes Suitable	Indicators
Weak acid / Weak Base	No suitable indicator (potentiometric titration preferred)
Strong acid / Strong Base	Bromothymol blue, Litmus
Strong acid / Weak Base	Methyl orange, Methyl red
Strong base / Weak acid	Phenolphthalein, Thymol blue

The ionization of a weak acid indicator is:

$$\text{HIn} \rightleftharpoons \text{H}^+ + \text{In}^-$$

The ionization constant ($K_a$) is given by:

$$K_a = \frac{[\text{H}^+][\text{In}^-]}{[\text{HIn}]}$$