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विटामिन B12 में निम्नलिखित में से कौन-सा धातु आयन पाया जाता है?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1कोबाल्ट (Co)✓
2आयरन (Fe)
3जिंक (Zn)
4लेड (Pb)

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कोबाल्ट (Co)

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विटामिन B12 में निम्नलिखित में से कौन-सा धातु आयन पाया जाता है?

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विटामिन B12 में निम्नलिखित में से कौन-सा धातु आयन पाया जाता है?

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