(a) (i) Draw two isomeric structures of Butene (C4H8). (ii) Name the following compounds : (I) H-C-C-C-Cl chain, each carbon bearing H atoms as substituents, with Cl on the terminal carbon (three-carbon chain: CH 3 -CH 2 -CH 2 -Cl type structure, all bonds single). (II) A four-carbon chain…

Question

(a) (i) Draw two isomeric structures of Butene (C4H8). (ii) Name the following compounds : (I) H-C-C-C-Cl chain, each carbon bearing H atoms as substituents, with Cl on the terminal carbon (three-carbon chain: CH 3 -CH 2 -CH 2 -Cl type structure, all bonds single). (II) A four-carbon chain H-C-C-C-C-H with H substituents on the first three carbons and a double-bonded O on the fourth carbon (aldehyde-type structure). (iii) Write the chemical equations for the following reactions. Mention one essential condition each for these reactions to take place. (I) Ethanol undergoes complete oxidation (II) Propene undergoes hydrogenation (III) Ethanoic acid reacts with ethanol

Aicharya · Accepted Answer

(a) (i) ½, ½ (any two) (ii) (I) Chloropropane (II) Butanone/ Butan-2-one (iii) (I) (II) CH 3 CH=CH 2 + H 2 CH 3 CH 2 CH 3 𝐴𝑐𝑖𝑑 (III) 𝐶𝐻3 𝐶𝑂𝑂𝐻 + 𝐶2 𝐻5 𝑂𝐻 → 𝐶𝐻3 𝐶𝑂𝑂𝐶2 𝐻5 + 𝐻2 𝑂 OR (b) (i) X = Ethanol/ Ethyl alcohol/ C 2 H 5 OH Y = Sodium ethoxide/ C 2 H 5 ONa Z = Hydrogen/H 2 𝐶𝐻3 𝐶𝐻2 𝑂𝐻 + 𝑁𝑎 → 𝐶𝐻3 𝐶𝐻2 𝑂𝑁𝑎 + 𝐻2 X Y Z (ii) (I) (II) Page 8 of 12 X_086_ 31/1/1 (III) (No mark to be deducted if equations are not balanced.)

(a) (i) Draw two isomeric structures of Butene (C4H8). (ii) Name the following compounds : (I) H-C-C-C-Cl…

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