Assessment: Organic Compounds and Macromolecules
Answer every question, then submit to see your score and which topics to review.
Part A — Concept Questions
What single property of carbon best explains why so many different organic compounds can exist?
EasyWhat does the term "polymer" literally describe?
MediumPart B — Formula & Application
What is the molecular formula of the alkane with 10 carbon atoms (decane)?
MediumAn alkene has 5 carbon atoms. How many hydrogen atoms does it have (using CₙH₂ₙ)?
MediumPart C — Problem Solving
Two unknown colourless liquids are tested with sodium carbonate. Liquid A bubbles vigorously; Liquid B shows no reaction at all. What can you conclude?
HardA new synthetic polymer is engineered with a molecular structure that matches an enzyme naturally found in soil bacteria. What property would you expect this polymer to have, compared to typical plastics?
HardPart D — Real-Life Application
Vinegar (acetic acid) is noticeably acidic and reactive, while rubbing alcohol (ethanol) is much less so, even though both are simple organic liquids of similar size. What best explains this difference?
MediumPart E — Challenge
Ethene (C₂H₄) monomers link together to form polyethylene. What structural feature of ethene makes this repeated linking possible?
Hard0/8 answered