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If the frequency of vibration for a C—O bond is ~1100 cm–1, the vibration frequency for a C—Cl bond would beSelect answer from the options belowhigher. lower. not possible to determine with the information given.identical.

Question

If the frequency of vibration for a C—O bond is ~1100 cm–1, the vibration frequency for a C—Cl bond would beSelect answer from the options belowhigher. lower. not possible to determine with the information given.identical.

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Solution

The vibration frequency of a bond is inversely proportional to the square root of the reduced mass of the atoms forming the bond. The reduced mass is given by the product of the masses of the two atoms divided by their sum.

The mass of a chlorine atom is greater than that of an oxygen atom. Therefore, the reduced mass of a C—Cl bond is greater than that of a C—O bond.

Since the vibration frequency is inversely proportional to the square root of the reduced mass, the vibration frequency of a C—Cl bond would be lower than that of a C—O bond.

So, the answer is "lower".

This problem has been solved

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