Question

find odd one out
C2H2,C3H8,C2H6,CH4

Answer 1

Answer:

CH4 is the correct answer

Answer 2

The odd one is C2H2 (ethyne).

• There are four organic chemical compounds mentioned in the question -

1. C2H2
2. C3H8
3. C2H6
4. CH4

• Now, C3H8, C2H6 and CH4 are alkane compounds with the general formula of C(n)H(2n+2).
• Only, the C2H2 is the alkyne compound here, with the general formula of C(n)H(2n-2). The common name of C2H2 is ethyne. (yne for alkyne)
• For this reason, the C2H2 is the odd term among the given chemical compounds.