State the reagents and conditions for this reaction.
Write the structural formula for one functional group that would give a positive result in this iodoform reaction.
What is observed in a positive test?
In the table below, place a tick ($\checkmark$) beside each compound that would give a positive result with this test, and a cross ($\times$) beside each compound that would give a negative result: $\text{CH}_3\text{OH}$ $\text{CH}_3\text{CH}_2\text{OH}$ $\text{CH}_3\text{CHO}$ $\text{CH}_3\text{CO}_2\text{H}$ $\text{C}_6\text{H}_5\text{CHO}$ $\text{C}_6\text{H}_5\text{COCH}_3$
Use the information in the table below to work out the structures of the compounds in the reaction scheme, and draw them in the boxes provided. $\text{C}_7\text{H}_{12}\text{O} \xrightarrow[\text{hot}]{\text{acidified } \text{KMnO}_4} \text{C}_3\text{H}_6\text{O} + \text{C}_4\text{H}_6\text{O}_3$ The test results (✓ for a positive result; \times for a negative result) are shown for compounds $D$, $E$, and $F$ using iodoform, Fehling's solution, 2,4-dinitrophenylhydrazine reagent, and $\text{Na}_2\text{CO}_3\text{(aq)}$.
When compound $F$ is treated with $\text{NaBH}_4$, compound $G$ with formula $\text{C}_4\text{H}_8\text{O}_3$ is formed. Heating $G$ with $\text{Al}_2\text{O}_3$ produces a mixture of three isomeric unsaturated carboxylic acids $H$, $J$ and $K$, $\text{C}_4\text{H}_6\text{O}_2$, and two of these are stereoisomers of one another. Suggest structures for $G$, $H$, $J$, and $K$, and state the type of stereoisomerism shown.