just need final answer. No need of explanation.

(1)For a compound with R, S configuration of two stereogenic centers, the possible configuration for its enantiomer and one of the diastereomers is: (2)The structure of the organic compound which shows the following spectral data: IR (cm1)=1680 1HNMR (CDCl3):7.66(m,1H),7.60(m,1H),7.10(m,1H), 2.50 (s, 3H) 13CNMR (CDCl3): 190, 144, 134, 132, 128, 28m/z (EI): 126(M+, 100%),128(M+,+2,4.9 (3)When Z=5 and energy is equal to 13.6eV, the orbital degeneracy of a one electron atomic system is: (4) The correct name of the given compound is: (5)The thermodynamic equation which relates the chemical potential to the composition of a mixture is known as