Question

Green chemistry means such reactions which

• A. produce colour during reactions
• B. reduce the use and production of hazardous chemicals
• C. are related to the depletion of ozone layer
• D. study the reactions in plants

Answer 1

The Correct Option is B

Green chemistry is an approach in chemical sciences aimed at designing products and processes that reduce or eliminate the use and generation of hazardous substances. This practice is focused on sustainability, reducing waste, and preventing pollution at its source rather than managing it after it has been created.

Let's analyze each option to determine the correct answer:

1. Produce color during reactions: This is not related to green chemistry. Producing color is often associated with creating visual indicators or coloring compounds and has no direct connection to the principles of green chemistry, which focus on safety and sustainability.
2. Reduce the use and production of hazardous chemicals: This is the core objective of green chemistry. Green chemistry principles strive to design chemical processes and products that are inherently safer, using substances that are non-toxic or less hazardous, and generating minimal harmful by-products. Hence, this option correctly embodies the concept of green chemistry.
3. Are related to the depletion of the ozone layer: While some green chemistry practices aim to minimize environmental impact, the discipline itself is broader than just focusing on ozone depletion. Therefore, this option is not directly aligned with the scope of green chemistry.
4. Study the reactions in plants: This is more related to biochemistry or plant sciences rather than green chemistry. Green chemistry doesn't specifically focus on plant reactions, although it can encompass using biological processes to achieve chemical utilizations in an eco-friendly manner.

Thus, the correct answer is reduce the use and production of hazardous chemicals, which succinctly encapsulates the primary objective of green chemistry.