Account for following: (a) Use of DDT was banned in United States in 1973. (b) Benzylic halides show high reactivity towards S_(N)1 reaction.

Account for following: (a) Use of DDT was banned in United States in

1.	Account for following: (a) Use of DDT was banned in United States in 1973. (b) Benzylic halides show high reactivity towards S_(N)1 reaction.
Answer» <html><body><p></p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :(a) Because of chemical stability of DDT and its fat stability, it is not metabolised very <a href="https://interviewquestions.tuteehub.com/tag/rapidly-2972968" style="font-weight:bold;" target="_blank" title="Click to know more about RAPIDLY">RAPIDLY</a> by animals. Rather it gets deposited and stored in fatty tissues. This raised alarming danger due to its toxic effects. Therefore, its use has been banned in U.S.A. <br/> (b) <a href="https://interviewquestions.tuteehub.com/tag/benzylic-895241" style="font-weight:bold;" target="_blank" title="Click to know more about BENZYLIC">BENZYLIC</a> halides show high reactivity towards `S_(N)1` reactions because benzyl carbocation formed is <a href="https://interviewquestions.tuteehub.com/tag/highly-2102664" style="font-weight:bold;" target="_blank" title="Click to know more about HIGHLY">HIGHLY</a> stable through resonance.</body></html>