Chemistry Hydrocarbons BUMHS 2024
PMDC Verified Question 12 of 65
In alkane series, all the linkages between carbon atoms is ____ bonds
A
Single
B
Double
C
Triple
D
Quadruple
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option A: Single
Concept:

Hydrocarbons are classified into families based strictly on their degree of saturation, which is defined by the type of carbon-carbon bonds they contain.

Solution:

  • Alkanes (general formula \( \text{C}_n\text{H}_{2n+2} \)) are defined as fully saturated hydrocarbons.


  • Because they are saturated, each carbon atom is sp3 hybridized and uses all its valence electrons to form independent bonds with four other atoms.


  • Consequently, all the carbon-carbon linkages in an alkane must be strong, localized single (sigma) bonds.


Why other options are incorrect:

  • Double bonds define the alkene series.


  • Triple bonds define the alkyne series.


  • Quadruple bonds do not exist between carbon atoms in stable organic molecules.

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