JEE Main levelSingle correct optionDifficulty 2 of 3ev194
A chemist protects a functional group, carries out the key step and then removes the protecting group, adding two steps and extra waste. Which principle of green chemistry is being violated?
AReduce derivatives
BDesign for degradation
CReal-time analysis for pollution prevention
DUse of renewable feedstocks
Answer: A
Blocking and deblocking groups are temporary derivatisations that need extra reagents and create waste. Green chemistry asks to avoid unnecessary derivatisation.