Organic Chemistry

During a chemistry class, Iman were discussing different ways to represent molecules. Safa mentioned the condensed structural formula. Which of the following best describes it?

• A detailed 3D model of the molecule

• A simplified representation showing the arrangement of atoms

• A list of all atoms in the molecule

• A chemical equation for the reaction

Nehj and Safa are studying the sources of organic compounds for their science project. What are the sources of organic compounds?

• Plants and animals

• Minerals and rocks

• Water and air

• Sunlight and soil

Where do we use Acetylene (HC≡CH) in our life?

Tehreem and Safa are working on a science project about household chemicals. They discover that compounds of Benzene are classified as ______.

• Cyclic compounds

• Acyclic compounds

• open chain

• preservatives

Tehreem and Jannat are in a chemistry lab, and they are given a task to identify a compound used in fuels. The compound is represented as CH₃ -CH₂ - CH₂ - CH₂ - CH₃. What is the IUPAC name of this compound?

• Pentane

• Butane

• Hexane

• Propane

During a chemistry class, Safa was asked to identify the IUPAC name of a straight-chain alkane with the molecular formula CH₃ -CH₂ - CH₂ - CH₂ - CH₂ - CH₂ - CH₂ - CH₂ - CH₂ - CH₃. What should be her answer?

• Decane

• Nonane

• Octane

• Heptane

Draw structural formula of butane.

What did you learn about?

what can you teach in chemistry class?