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STD 12 - 5. Co-ordination chemistry — JEE STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceJEESTD 12 - 5. Co-ordination chemistry4 Marks
MCQ
The complex that dissolves in water is
  • A
    $Fe _4\left[ Fe ( CN )_6\right]_3$
  • ✓
    $\left[ Fe _3( OH )_2( OAc )_6\right] Cl$
  • C
    $K _3\left[ Co \left( NO _2\right)_6\right]$
  • D
    $\left( NH _4\right)_3\left[\operatorname{As}\left( Mo _3 O _{10}\right)_4\right]$
✓

Answer

Correct option: B.
$\left[ Fe _3( OH )_2( OAc )_6\right] Cl$
b
$Fe _4\left[ Fe ( CN )_6\right]_3$ Prussian Blue-water insoluble

$K _3\left[ Co \left( NO _2\right)_6\right]$ very poorly water soluble

$\left( NH _4\right)_3\left[\right.$ As $\left( MO _3 O _{10}\right)_4$ ] water insoluble ammonium arseno molybdate

$\left[ Fe _3( OH )_2( OAc )_6\right] Cl$ is water soluble.

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