Chemistry 9701 · AS & A Level · Carboxylic acids and derivatives

Carboxylic acids and derivatives — practice question

Fig. 3.1 shows a reaction pathway that can be used to make the food additive compound $Y$ from $\text{CH}_3\text{CH}_2\text{Cl}$.
(a(i))[1]

State the reagent and the conditions required for step 1 in Fig. 3.1.

(a(ii))[1]

Give the systematic name for compound $X$.

(a(iii))[1]

Identify the type of reaction that occurs when dilute acid is added to $X$ in step 2.

(a(iv))[2]

In step 3, $Y$ and a gas are formed. Construct an equation for step 3.

(b)[1]

$\text{CH}_3\text{CH}_2\text{COOH}$ can also be produced from propan-1-ol and potassium dichromate(VI). State the conditions needed.

(c)[2]

Complete Table 3.1 to show how many sigma ($\sigma$) and pi ($\pi$) bonds are present in one molecule of $X$.

Worked solution & mark scheme

This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: KCN in ethanol, heated

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