The disodium salt of ethylene diamine tetracetic acid can be used to estimate the following ion(s) in the aqueous solution.

M g^{2 +} i o n

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C a^{2 +} i o n

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N a^{+} i o n

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both

M g^{2 +}

and

C a^{2 +}

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Solution

The correct option is D both $M g^{2 +}$ and $C a^{2 +}$
In EDTA titration disodium salt of ethylene diamine tetracetic acid is used for determination of $C a^{+ 2}$ and $M g^{+ 2}$ ions in water.

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