The function of copper ions in copper releasing \(IUDs\) is

A they inhibit gametogenesis
B they make uterusunsuitable for implantation
C they inhibit ovulation
D they suppress sperm motility and fertilising capacity of sperms.

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Answer & Solution

Correct Answer

(D) they suppress sperm motility and fertilising capacity of sperms.

Step-by-step Solution

Detailed explanation

(d) : Copper releasing \(IUDs (i.e., CuT, LNG-20)\) are placed in the uterus of the females. They are an efficient birth control methods. Copper ions released by them suppress motility and fertilising capacity of the sperms.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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