\begin{tabular}{|c|c|c|c|c|c|c|} \hline \multicolumn{2}{|c|}{C7H10O} & \multicolumn{2}{l|}{D of U - } \\ \hline Signal & Chem. Shift & Integration & Multiplicity & Adj. H & H-type & Structure and Assignment \\ \hline A & 2.4 & 4 & Triplet & & & \\ \hline B & 1.6 & 4 & Sextet & & & \\ \hline C & 0.9 & 6 & Triplet & & & \\ \hline \end{tabular} \begin{tabular}{|c|c|c|c|c|c|c|} \hline \multicolumn{2}{|c|}{C5H3O2} & \multicolumn{2}{l|}{D of U=} \\ \hline Signal & Chem. Shift & Integration & Multiplicity & Adj. H & H-type & Structure and Assignment \\ \hline A & 4,1 & 4 & Triplet & & & \\ \hline B & 2.7 & 4 & Triplet & & & \\ \hline \end{tabular} \begin{tabular}{|c|c|c|c|c|c|c|} \hline \multicolumn{2}{|c|}{C2H4Cl2} & \multicolumn{3}{|c|}{D of U=} \\ \cline { 1 - 5 } Signal & Cbem. Shift & Integration & Multiplicity & Adj. H & H-type & Structure and Assignment \\ \cline { 1 - 5 } A & 5.9 & 1 & Quartet & & & \\ \cline { 1 - 5 } B & 2.1 & 3 & Doublet & & & \\ \hline \end{tabular}