While means during the same time, but a meeting being over is a completed action, not an ongoing one. The correct conjunction is when or after. So sentence 2 is not grammatically correct.
Which one of the given sentences is not grammatically correct?
Held on 22 Jun 2023 · Verified 13 Jul 2026.
Copper is a useful metal.
She came while the meeting was over.
This is the house where I lived for ten years.
The doctor discharged the patient from the hospital.
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