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  3. Chemistry
  4. Three moles of AgCl get precipitated when one mole of an octahedral co-ordination compound with empirical formula CrCl 3 ⋅ 3 NH 3 ⋅ 3 H 2 O reacts with excess of silver nitrate. The number of chloride ions satisfying the secondary valency of the metal ion is.

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Q. Three moles of $AgCl$ get precipitated when one mole of an octahedral co-ordination compound with empirical formula $CrCl _{3} \cdot 3 NH _{3} \cdot 3 H _{2} O$ reacts with excess of silver nitrate. The number of chloride ions satisfying the secondary valency of the metal ion is______.

JEE MainJEE Main 2021Coordination Compounds

Solution:

Mole of $AgCl$ precipitated is equal the mole of $Cl ^{-}$present in ionization sphere.
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Since none of $Cl ^{-}$is present in the co-ordination sphere. Therefore answer is zero.