Out of these seven compounds, just one has stereoisomers. Draw three-dimensional diagrams showing the two stereoisomers of this compound.
P, Q, R, S, T, U and V are tested separately with alkaline $\text{I}_2(aq)$, and the mixture is then acidified. Identify the two compounds that give a positive result with alkaline $\text{I}_2(aq)$. ............... and ...............
Describe the observations when one of the compounds you identified in b(i) is treated with alkaline $\text{I}_2(aq)$, and give the structural formula of the two carbon-containing products formed in this reaction. observations ............... two carbon-containing products ............... and ...............
The proton ($^1\mathrm{H}$) NMR spectra of P, Q, R, S, T, U and V are compared. Identify the only compound that gives a spectrum with two singlets and no other peaks.
Fig. 7.1 displays the spectrum obtained from one of these compounds. Identify the compound responsible for this spectrum.
Name the splitting pattern for the peak at $\delta = 1.1$ in Fig. 7.1, and give the reason for this splitting.
Identify the substance that gives the small peak at $\delta = 0$ in Fig. 7.1.
The carbon-13 NMR spectra of R, S, T and U are compared. Complete Table 7.1 to state the number of peaks in the spectrum of each compound.