Why are meta directing groups often referred to as 'deactivating groups'?

Question

Why are meta directing groups often referred to as 'deactivating groups'?, They increase the electron density on the benzene ring., They make further substitution easier., They decrease the overall electron density on the benzene ring., They are highly reactive in electrophilic aromatic substitution.

MARKS App · Accepted Answer

Meta directing groups are often referred to as 'deactivating groups' because they decrease the overall electron density on the benzene ring, making further substitution difficult.

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