Question 4- Which of the following could be buffers? KHSO4 and K₂SO4 H₂SO4 and KHSO4 HCN and NH4+ HNO3 and NaNO3

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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.