The substance household bleach having a pH of 13 is the most basic substance.
What is basicity?
The term basicity of a substance refers to the concentration of the hydroxide ion in the susbstance. In effect, "how basic" the substance is.
The pH scale is a measure of acidity/basicity. A pH that is above 10 shows very basic. The substance household bleach having a pH of 13 is the most basic substance.
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