In a normal adult, ascending order of concentration of following molecules is

1. $\mathrm{K}>\mathrm{Na}>\mathrm{Fe}>\mathrm{Cu}$
2. $\mathrm{Na}>\mathrm{K}>\mathrm{Cu}>\mathrm{Fe}$
3. $\mathrm{Fe}>\mathrm{Na}>\mathrm{K}>\mathrm{Cu}$
4. $\mathrm{Na}>\mathrm{Fe}>\mathrm{K}>\mathrm{Cu}$

Solution

Asked in: NEET 2022 (Phase 2)

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