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UNIT 4 - ORGANIC CHEMISTRY QUESTIONS AND ANSWERS

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  What are R Chains - Correct Answers: Demonstrate the Length of the Carbon Chain What is used to show the movement of an electron pair (2)? - Correct Answers: A curly arrow What does the X represent? - Correct Answers: A Halogen (CnH2n+1X) Where is the R group located in a primary chai...

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  • August 22, 2024
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  • 2024/2025
  • Exam (elaborations)
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UNIT 4 - ORGANIC CHEMISTRY
QUESTIONS AND ANSWERS




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, What are R Chains - Correct Answers: Demonstrate the Length of the Carbon Chain



What is used to show the movement of an electron pair (2)? - Correct Answers: A curly arrow



What does the X represent? - Correct Answers: A Halogen (CnH2n+1X)



Where is the R group located in a primary chain? - Correct Answers: At the end/start of the chain



Where is the R group located in a secondary chain? - Correct Answers: In the middle of the chain



Where is the R group located in a tertiary chain? - Correct Answers: Located in 3 regions of the chain
forming a branched chain



What are the forces between C-H bonds in a carbon chain? - Correct Answers: Van der Waals Forces (the
weakest)



Why does the halogen (X) bond to a carbon atom on a hydrocarbon chain? - Correct Answers: Carbon is
partially polar (+ve) and the halogen is also partially polar (-ve)



What is electronegativity? - Correct Answers: The ability of an atom to attract electrons in a covalent
bond, towards itself (occurring due to nuclear charge, dependant on the amount of shells, and is
strongest when there is no shielding)



What is used o show the movement of one electron - Correct Answers: Half of a curly arrow



What is a Nucleophile (Nu -ve)? - Correct Answers: Species (e.g., group) with a lone pair of electrons,
and either a negative charge or with a bonded atom with a partially -ve charge



Summarise a nucleophile in 2 points - Correct Answers: Has lone pair availability

Electron pair donor

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