Exercises: Nitration

Exercise

Due to its -M and -I effect, the nitro group shows ...

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	... a strongly activating influence on an aromatic compound.
	... a faintly activating influence on an aromatic compound.
	... a faintly deactivating influence on an aromatic compound.
	... a strongly deactivating influence on an aromatic compound.

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Exercise

The introduction of a second and, in particular, a third nitro group through electrophilic aromatic substitution may be achieved by applying ...

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	... fuming nitranilic acid.
	... hot nitrating acid or a mixture of white fuming nitric acid and concentrated sulfuric acid.
	... hot nitric acid.
	... dilute nitric acid or a mixture of dilute nitric acid and concentrated acetic acid.

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