DP Chemistry (last assessment 2024)

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Question 21N.2.hl.TZ0.e

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Date November 2021 Marks available [Maximum mark: 2] Reference code 21N.2.hl.TZ0.e
Level hl Paper 2 Time zone TZ0
Command term Discuss Question number e Adapted from N/A
e.
[Maximum mark: 2]
21N.2.hl.TZ0.e

Hybridization of hydrocarbons affects their reactivity.

Discuss the reason benzene is more reactive with an electrophile than a nucleophile.

[2]

Markscheme

delocalized electrons/pi bonds «around the ring»
OR
molecule has a region of high electron density/negative charge ✔

electrophiles are attracted/positively charged AND nucleophiles repelled/negatively charged ✔

 

Do not accept just “nucleophiles less attracted” for M2.

Accept “benzene AND nucleophiles are both electron rich” for “repels nucleophiles”.

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