Page 07 20. When 2-bromobutane reacts with ethanolic potassium cyanide and the compound formed is hydrolysed with dilute acid, the final product is A butanoic acid B pentanoic acid C 2-methylbutanoic acid D 2-methylpentanoic acid. 21. H C C C H H H H H Cl H 1 H C C C H H H H H OH H 2 H C C C H H H H H O 3 H C C C H H H H H 4 Which line in the table correctly identifies W, X, Y and Z in the reaction sequence? reduction dehydration addition W X Y Z W X Y Z A 1 4 2 3 B 3 2 1 4 C 3 2 4 1 D 4 1 2 3 22. Which of the following statements about benzene is not true? A It is planar. B It is susceptible to attack by electrophilic reagents. C Its carbon to carbon bonds are equal in length. D It is readily attacked by bromine. [Turn over
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This question is part of the UK A-Level Chemistry syllabus. In the actual exam, structured questions typically require linking specific keywords to gain full marks. Applaa helps you drill these topics.
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