This is a pH chart of common materials.



Which substance is the most basic?

a
Cheese
b
Cola
c
Bleach
d
Baking Soda

The most basic substance on the pH chart of common materials is bleach.

To determine which substance is the most basic, we need to look at their pH values. The lower the pH value, the more acidic a substance is, while the higher the pH value, the more basic it is.

Given the options you provided:

a) Cheese: The pH of cheese can vary depending on the type, but most cheeses have a pH value ranging from around 4-7, making them slightly acidic or neutral.

b) Cola: Cola drinks have a pH value of around 2.5-3.5, indicating that they are highly acidic.

c) Bleach: Bleach typically has a pH value of around 12-13, making it a highly basic substance.

d) Baking Soda: Baking soda, also known as sodium bicarbonate, has a pH value of around 8.3, making it slightly basic.

Based on the pH values provided, the most basic substance among the options you provided is c) Bleach.

To determine which substance is the most basic, we need to understand the concept of pH. pH is a measure of the acidity or alkalinity of a substance on a scale of 0 to 14. A pH value of 7 is considered neutral, while values below 7 are acidic and values above 7 are alkaline or basic.

Now, let's analyze the options given:

a) Cheese: We don't have enough information about the pH of cheese to determine its acidity or alkalinity.

b) Cola: Cola drinks are usually acidic due to the presence of carbonic acid and phosphoric acid.

c) Bleach: Bleach, which typically contains sodium hypochlorite, has a high pH and is considered a strong base.

d) Baking Soda: Baking soda, also known as sodium bicarbonate, is a mild alkaline substance with a pH of around 9, making it more basic than cola but less basic than bleach.

Based on the information provided, the most basic substance from the given options is c) Bleach.