If NaOH is added to an aqueous solution of Zn2+ ions, a white precipitate appears and on adding axcess NaOH, the precepitate dissolves. In this solution zinc exists in the:

(a) cationic part

(b) anionic part

(c) both in cationic and anionic parts

(d) there is no zinc left in the solution

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Some Important Compounds of Na
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