Use the following option above to answer this question. Which of the following compounds in solution will turn red litmus paper blue?
RNH\(_2\), a general representation for an amine, turns red litmus paper blue because amines are basic in nature. When an amine is dissolved in water, it acts as a base, accepting a proton (H+) and forming a conjugate acid and a hydroxide ion (OH-). The presence of hydroxide ions makes the solution alkaline, and alkaline solutions turn red litmus paper blue.
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