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Emergency contraceptives are effective if used within:
A36 hours
B72 hours
C92 hours
D12 hours
Answer & Solution
Correct answer: B. 72 hours
1. Progestogens or IUDs may be used for this.
2. They are used after unprotected coitus.
3. They work within 72 hours.
_Source: NCERT Class 12 Biology, 'Reproductive Health'_
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