According to green chemistry, which of the following features is...

According to the principles of green chemistry, the use of catalysts is highly encouraged because they lower the activation energy, which reduces energy demands and reaction times. Catalysts also improve the selectivity of a reaction, leading to a higher yield of the desired product.

Green chemistry aims to minimize or eliminate the generation of hazardous substances and waste. Therefore, an increase in waste is contrary to the goals of green chemistry and is not a favored feature of a catalyst.

Answer: Increase in waste