Question

Hazardous effects of a substance can be reduced by}

• A. increasing its bioavailability
• B. minimising its biodiversity
• C. using protecting groups
• D. using solvents

Hint:

Reducing reactivity (e.g., using protecting groups) helps minimize hazardous effects in chemical processes.

Answer 1

The Correct Option is C

Concept: In synthetic chemistry, controlling the reactivity of specific functional groups is essential to prevent side reactions and improve safety during chemical processes. Step 1:Understand the strategy for controlling reactivity.
Certain functional groups in a molecule may react too strongly under given conditions. Chemists temporarily mask these reactive sites so that only desired reactions occur.
Step 2:Analyze the purpose of each option.

• Increasing bioavailability → Enhances activity, not risk control
• Minimising biodiversity → Ecological concept, not chemical safety
• Using protecting groups → Temporarily blocks reactive sites to control unwanted reactions
• Using solvents → Medium for reactions, does not inherently reduce hazard

Step 3:Conclusion logic.
By selectively shielding reactive functional groups, unwanted chemical interactions are prevented, making the process safer and more controlled.