Chemistry 9701 · AS & A Level · States of matter

States of matter — practice question

(a)[4]

Table 6.1 contains a set of tests for different organic groups. Complete Table 6.1 by identifying an organic functional group, in aliphatic compounds, that gives a positive outcome in each test.

(b)

Lavandulol is an aliphatic organic compound and the main component of lavender oil. Fig. 6.1 shows a reaction scheme involving lavandulol, A.

(b(i))[1]

Deduce the functional group in compound A by using both the molecular formulae of A and B and the reaction of B with Fehling’s reagent.

(b(ii))[3]

Name the reaction type occurring in each conversion listed below. A $\rightarrow$ B C $\rightarrow$ E E $\rightarrow$ F

(b(iii))[2]

Use the information in Table 6.2 and the molecular formulae to deduce structures for G and H. Draw your structures in Fig. 6.1.

(b(iv))[5]

Use the information in Table 6.2, the molecular formulae and your answer to (b)(iii) to deduce structures for A, C, D, E and F. Draw your structures in Fig. 6.1.

(i)[1]

Deduce the functional group present in compound A using both the molecular formulae of A and B and the reaction of B with Fehling’s reagent.

(ii)[3]

Name the reaction type that occurs in each of the following conversions. • $\text{A} \rightarrow \text{B}$ • $\text{C} \rightarrow \text{E}$ • $\text{E} \rightarrow \text{F}$

(iii)[2]

Use the information in Table 6.2 and the molecular formulae to deduce structures for G and H. Draw your structures in Fig. 6.1.

(iv)[5]

Use the information in Table 6.2, the molecular formulae and your answer to part (b)(iii) to deduce structures for A, C, D, E and F. Draw your structures in Fig. 6.1.

Worked solution & mark scheme

This 26-mark question has a full step-by-step worked solution and mark scheme. One marking point: Correct matches between tests and functional groups

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