A woman with long hair is suspected in a burglary case. At the crime scene, several long hairs were found attached to a broken lock of the safe. Suppose the hairs of the woman match the hairs found at the crime scene. First, what type of evidence is hair and does this prove that she was guilty of the crime? Completely explain your answer.

c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.