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  9. Q133

RRB Group D (Level-1 posts) 2022 · Question 133 of 598

Cyclohexane contains ……………….. C-C bonds and,…………… C-H bonds, so total ………………. covalent bonds are

  1. A4, 8, 12
  2. B4, 12, 16
  3. C6, 12, 18Correct
  4. D6, 12, 11

Answer: C. 6, 12, 18

Explanation

Cyclohexane has the chemical formula C6H12\text{C}_6\text{H}_{12}C6​H12​. Number of C-C bonds: Cyclohexane has a six-carbon ring structure where each carbon atom is bonded to two other carbon atoms. Therefore, it has 6 C-C bonds in a closed ring structure. Number of C-H bonds: Each carbon atom in cyclohexane is also bonded to two hydrogen atoms. With 6 carbons, there are 6×2=126 \times 2 = 126×2=12 C-H bonds. Total number of covalent bonds: The total covalent bonds are the sum of C-C and C-H bonds. Answer: Cyclohexane contains 6 C-C bonds and 12 C-H bonds, so there are a total of 18 covalent bonds.

Source: RRB Group D 2022 Prev. Yr. Paper (17 Aug 2022) (Shift 2) - Prepp · reliable-secondary

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