Which of the following combinations would be the best to buffer the pH of a solution at approximately 7.2? Please answer completely will give rating surely Complete explaination needed

Q: None

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Q: Please answer all

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.