Fig. 3.1 describes a sequence of reactions that can be used to produce a food additive, compound Y, from CH3CH2Cl. X step 1 step 2 step 3 CH3CH2Cl CH3CH2CN CH3CH2COOH Y dilute acid Ca(s) Fig. 3.1

1. (a)(i)State the reagent and conditions for step 1 in Fig. 3.1.[1]
2. (a)(ii)Give the systematic name of X.[1]
3. (a)(iii)Identify the type of reaction that occurs when dilute acid is added to X in step 2.[1]
4. (a)(iv)In step 3, Y and a gas are produced. Construct an equation for step 3.[2]
5. (b)CH3CH2COOH can also be formed from propan-1-ol and potassium dichromate(VI). State the conditions required.[1]
6. (c)Complete Table 3.1 to show the number of sigma bonds (σ) and pi bonds (π) present in a molecule of X. Table 3.1 type of bond | number of bonds in X ---|--- sigma (σ) | pi (π) |[2]

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