JPJC 2026 Intro to Organic Chemistry and Isomerism MCQ

2026 JPJC JC1 H2 Chemistry (9476) 1 JURONG PIONEER JUNIOR COLLEGE 2026 JC1 H2 Chemistry (9476) MCQ Quiz Topic 8: Introduction to Organic Chemistry and Isomerism Name : __________________________________________ 5 Class : 26S ___ Date : ____________ Duration : 10 minutes For each question there are four possible answers, A, B, C and D. Choose the one you consider to be correct and indicate your answers in the brackets provided. 1 Which of the following structures does not exhibit enantiomerism? A B C D 2 Aureomycin is a powerful antibiotic and it has the structure as shown below. aureomycin What functional groups are present in the molecular structure of aureomycin? 1 alcohol 2 amine 3 alkene A 1 and 2 only B 1 and 3 only C 2 and 3 only D 1, 2 and 3 CH3 CH2CH3 Br O O O CH3 CH3 CH3 CH2 NH2 NH2NH2 OH Cl O OH CH3 OH OH O H N CH3 CH3 C O NH2 ( ) ( )

2026 JPJC JC1 H2 Chemistry (9476) 2 3 Covalent bonds are formed by orbital overlap. The shape of unsaturated hydrocarbon molecules can be explained in terms of hybridisation of orbitals. Which bond is not present in the molecule shown below? A a  bond formed by 2p−2p overlap B a  bond formed by 1s−2sp2 overlap C a  bond formed by 2sp−2s overlap D a  bond formed by 2sp2−2sp3 overlap 4 Three statements were made about the structure and functional groups of compound P. Compound P Which statements about compound P are correct? 1 It contains three chiral centres. 2 It contains 16 stereoisomers. 3 It contains a benzene ring. A 1 only B 1 and 2 only C 2 and 3 only D 1, 2 and 3 5 What is the IUPAC name of compound J? compound J A 5-hydroxyhex-3-ene B 2-hydroxyhex-3-ene C hex-3-en-2-ol D hex-3-en-5-ol C CH C H C C H C H H H OH OH CH(OH)CH2OH ( ) ( ) ( )