11. O/N 2018/P11/Q34
How many of the molecules shown belong to the homologous series of alkanes?
C2H4 C3H8 C4H10 C5H10 C6H14
A 1 B 2 C 3 D 4
Answer: C
Explaination
Alkanes are saturated HC and the general formula for all alkane compound is same i.e: CnH2n+2. By using this formula we can get the correct molecule belongs to alkane family.
Hence options C3H8, C4H10 and C6H14 are alkane molecules as they fit in alkane general formula.
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