Task: Question Answering
Input (English): Question: With respect to the peptide bond, indicate which of the following statements is FALSE: 
 Options:  <1> It has partial character of double bond. <2> Form a small dipole. <3> Its formation involves the elimination of a molecule of water. <4> The peptide chain rotates freely through the peptide bond. <5> In an amide link.
Output (English): 4