I need help identifying the fuctional groups of each of the IR and identifying the unknown compund using the 3 spectroscopy

IR Unknowns benzamide 3,3-dimethylpentane phenyl propyl ether 4-methylbenzophenone pivalic acid cyclohexanol benzoin 4-pentenoic acid 2-methylpropanal 2-buten-1-ol phthalic acid 2-hexenal 2-propyn-1-ol 3,3-dimethylbutanoyl chloride methyl lactate S-phenyl-1-pentyne tert-butyl aicohol phenylethyne 2-hexanone tert-butyl chloride N acetonitrile cyclopentanone hexanoic anhydride 1,8-naphthalic anhydride ethyl benzoate 3-hydroxy-3-methyl-2-butanone 4-tert-butylcyclohexanone