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CBSE Class 12-science Answered

Why is it not possible to obtain a halide by treating ROH with 'X'?
Asked by sasikala106 | 08 Mar, 2018, 01:25: PM
answered-by-expert Expert Answer
R minus O H space space plus space C l to the power of minus space space rightwards arrow from blank to blank of space space space N o space r e a c t i o n
This is because in R-OH the bond between R and OH is a polar covalent bond which is a very strong bond.
And as a nucleophile Cl- is very weak than OH-. Hence it is not able to replace the strong R-OH bond with R-Cl 
 
Hence to convert ROH into RCl we need a special reagent that is SOCl2 or PCl5, these reagents can bring this conversion.
Answered by Ramandeep | 08 Mar, 2018, 02:37: PM
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