question 17\nwhat is the stretching frequency (in cm^-1) of the following carbonyl?\n1685\n1715\n1745
question 17\nwhat is the stretching frequency (in cm^-1) of the following carbonyl?\n1685\n1715\n1745
Answer
Explanation:
Step1: Identify carbonyl type
The given carbonyl is a cyclic ketone (cyclopentanone). Cyclic ketones have characteristic IR - stretching frequencies.
Step2: Recall frequency range
For five - membered cyclic ketones, the carbonyl stretching frequency is around 1745 cm⁻¹ due to ring strain increasing the force constant of the C=O bond.
Answer:
1745