NEET-XII-Chemistry
Previous Year Paper year:2018
- #72The compound A on treatment with Na gives B, and
with ``PCl_5 ``gives C. B and C react together to give
diethyl ether. A, B and C are in the order
(1) ``\ce C2H5OH, C2H6, C2H5Cl``
(2) ``\ce C2H5OH, C2H5Cl, C2H5ONa``
(3) ``\ce C2H5Cl, C2H6, C2H5OH``
(4) ``\ce C2H5OH, C2H5ONa, C2H5Cl``digAnsr: 4Ans : (4)
Sol. C H OH 2 5 C H ONa2 5
Na
A B
C H OH 2 5 C H Cl2 5
PCl5
A C

C H ONa + 2 5 C H -Cl2 5
A C
SN
2
Williamson's
synthesis of ether
C H -O-C H2 5 2 5
diethylether
