Which French chemist popularized science by applying discoveries to industry and agriculture, with a winemaking process named after him?

• A. Jean-Antoine Chaptal
• B. Louis Pasteur
• C. Antoine Lavoisier
• D. Nicolas-Theodore de Saussure

Answer: (A)

The main idea here is identifying a chemist who made science useful for everyday work in farming and industry, with a winemaking term bearing his name. Jean-Antoine Chaptal is known for popularizing chemistry by showing how it can improve agriculture and industry, and in winemaking he’s honored with the term “chaptalization.” This practice involves adding sugar to grape must before fermentation to raise the potential alcohol content, helping wines from cooler regions achieve balance and quality. It’s a clear example of taking a scientific idea and applying it to a practical industry—winemaking.

Louis Pasteur advanced the science of fermentation and contributed to pasteurization, but there isn’t a winemaking process named after him. Lavoisier and Saussure made foundational contributions to chemistry and plant chemistry, respectively, but none are linked to a winemaking process named after them.