Write the reaction equation: C3H7OH-C3H7CHO-C3H7COOH.

1. Let’s write down the equations for organic substances:
Н3С – СН2 – СН2 – ОН + CuO = H3C – CH2 – COH + Cu + H2O – the reaction of propanol oxidation with copper oxide occurs upon heating, propionic aldehyde is obtained;
Н3С – СН2 – СОН + Ag2O = CH3 – CH2 – COOH + 2Ag – qualitative reaction to propanal, propionic acid and silver are released.
2. The solution process shows the relationship of saturated monohydric alcohols using the example of propanol and organic carboxylic acids. The final product, propionic acid, is used in the food industry as a preservative.