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Q. The addition of dilute $NaOH$ to $Cr ^{3+}$ salt solution will give:

JEE MainJEE Main 2021Coordination Compounds

Solution:

$Cr^{3+} + \underset{dil.}{NaOH} \to \underset{\text{Precipitate}}{Cr_2O_3.(H_2O)_n}$