Question 44
Carbohydrates, Proteins and AminesWhich of the following compounds in solution will turn red litmus paper blue?
- A.R′OR″
- B.RCONR2
- C.RNH2
- D.RCOR
Show the answer and explanation
Answer: C (RNH2)
Explanation
Amines, like ammonia, have a lone pair on nitrogen that accepts protons, so their solutions are alkaline.