Alcohols and phenols are formed when a hydrogen atom in a hydrocarbon, aliphatic or aromatic, is replaced by an –OH group.
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Aryl halides exhibit lower reactivity in nucleophilic substitution due to the resonance effect, which imparts partial double bond character to the C—X bond, making bond cleavage more challenging compared to haloalkanes.
Grignard reactions are carried out in dry ether to avoid even traces of moisture. Moisture reacts with Grignard reagents, leading to the protonation of the carbon-magnesium bond and hindering the desired reactivity. Avoiding moisture is essential to prevent unwanted side ...
The use of DDT was banned in the United States in 1973. DDT’s chemical stability, fat solubility, and slow metabolism in animals led to its accumulation in fatty tissues, causing environmental concerns and contributing to its ban in the U.S., ...
DDT’s global use increased significantly after World War II due to its effectiveness against malaria-spreading mosquitoes and typhus-carrying lice. However, problems emerged in the late 1940s, including the development of insect resistance and high toxicity towards fish.