A-Level ChemistryYear 2016Q20
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
Paper Source:NAH_Chemistry_all_2016.pdf
Get full Socratic AI guidance on this question — free in the Applaa desktop app
Appy Buddy guides you step-by-step toward the answer without giving it away. Type your attempt and get instant, mark-scheme-aware clues that teach you to think like an examiner.
Applaa Desktop App
Join Applaa Community
Create your own games, learn AI concepts, program interactive apps, and share with a kid-safe community approved by parents. Free forever on Windows and Mac.
Download Free
Available for Windows and macOS · COPPA Compliant
Exam Specification Info
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.
Syllabus levelAdvanced Level (A-Level)
SubjectChemistry
Official MarksVariable (2–6 marks)