The number of saturated and unsaturated bonds in cyclohexane are :

9 and 0 respectively.

18 and 3 respectively.

18 and 0 respectively.

9 and 3 respectively.

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UPSC CDS-1 – 2022

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Cyclohexane (C6H12) is a cyclic alkane. Its structure consists of a six-membered ring of carbon atoms, with each carbon atom bonded to two other carbon atoms and two hydrogen atoms. All bonds in cyclohexane are single bonds. A single bond is considered a saturated bond in contrast to double or triple bonds which are unsaturated bonds. There are 6 carbon-carbon single bonds forming the ring and 12 carbon-hydrogen single bonds. Thus, there are a total of 6 + 12 = 18 saturated bonds (single bonds) and 0 unsaturated bonds (double or triple bonds).

In organic chemistry, molecules containing only single bonds between carbon atoms and single bonds to hydrogen atoms are considered saturated. The term “saturated bond” commonly refers to a single bond, while “unsaturated bond” refers to double or triple bonds.

The formula C6H12 matches the general formula for cycloalkanes (CnH2n) or alkenes. Cyclohexane is a cycloalkane. A six-carbon chain alkane (hexane) has the formula C6H14. The formation of a ring involves the loss of two hydrogen atoms and results in 6 C-C single bonds and 12 C-H single bonds.

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