1. Which statement is not true? A. Bases have a pH lower than 7.

B. Acids release H+ions.

C. Bases release OH-ions.

D. Lemon juice is acidic.

A.Bases have a pH lower than 7.

Explanation:

pH, is the degree of acidity or alkalinity of a substance. pH uses a range of numbers from 0 - 14 to indicate the level of how acidic or basic a substance is. Generally, acids are substances that release H+ (hydrogen ions) when dissociated in water while bases are substances that release the OH- (hydroxyl ion) when dissociated.

In the pH scale, below 7 indicates ACIDITY with the lower (<) the value, the higher the acidity while greater (>) than 7 indicates ALKALINITY or BASICITY. Hence, according to this question, it is not to TRUE that "Bases have a pH lower than 7".

light dependent reactions:

light independent reactions:

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