Is a Christian woman required to observe ‘iddah if her Muslim husband divorces her?

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Check below answers in case you are looking for other related questions:
Is it permissible for a woman who is observing ‘iddah following her husband’s death to attend the Eid prayer?
Should she wait out her 'iddah in the place where her husband died, or go back to her homeland?

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Related Answers:
The ‘iddah of a woman divorced by khula’ and her going back to her husband
She wants to become Muslim but she is in nifaas; how should she work out her ‘iddah?
He wants to marry a non-Muslim woman who became Muslim, but her husband has not divorced her
Is it permissible for a woman who is observing ‘iddah following her husband’s death to attend the Eid prayer?
Should she wait out her 'iddah in the place where her husband died, or go back to her homeland?

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