Question

20. Which of the following pairs of compounds are positional
isomers?
2. CH; CH3-CH2-CH-CHO and
11
CHỊCH, CH3-CCHI
b. CH --CH-CH2-C-CH, and
o
CH-CH-CH2-CHO
CH,
C CH3-CH2-CH2-C-CH3 and
CH3-CH-C-CH2-CH;
o
d. CH, CH-C-CH-CH, and
0
CH,
CH=CH-CHO
CH,
(IIT-JEE Online, 2015)​

Answer 1

Answer:

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