Compare the positions of electrons in the CH bonds in carbohydrates and fats. Wh

Question

Compare the positions of electrons in the CH bonds in carbohydrates and fats. Which of the following statements explains the energy potential?

1. The electrons involved in the CH bonds in carbohydrates and fats are shared equally because the electronegativity of carbon and hydrogen is about the same. Thus, these electrons have relatively high potential energy. 2. There is relatively low potential energy in the CH bond in carbohydrates and fats because the electronegativity of carbon and hydrogen are about the same. 3. There is relatively low potential energy in the CH bond in carbohydrates and fats because carbon has higher electronegativity than hydrogen. 4. There is relatively high potential energy in the CH bond in carbohydrates and fats because carbon has higher electronegativity than hydrogen.

Explanation / Answer

Ans 3) There is relatively low potential energy in the CH bond in carbohydrates and fats because carbon has higher electronegativity than hydrogen. On comparing the electronegativity of C and H, it is found that carbon has an electronegativity of 2.55 and hydrogen has an electronegativity of around 2.2. Due to this small difference between the electronegativity, the C-H bonds are generally even regarded as non-polar.

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