Photolysis of water requires the following essential elements in ionic form.

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Mn2+ and Cl-

Mg2+ and Na+

Cl- and Fe2+

K+ and Na+

answer is A.

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Detailed Solution

During photolysis, water molecules are broken down with the help of oxygen evolving complex (OEC).OEC contains Mn2+, Ca2+ and Cl- ions.

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