Step-by-step explanation:
a) The solutions can be classified as basic or acidic depending on their hydrogen ion concentration relative to pure water. If the value of pH is below seven, then the solution is acidic and if the pH is greater than seven then the solution is said to be basic.
b) Basic in nature means when a substance is soapy and bitter in taste and when a subtance changes red litmus blue. This nature of substance is basic.
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