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Model Paper 9 — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETModel Paper 94 Marks
MCQ
Aqueous solution of nickel sulphate on treating with pyridine and then adding a solution of sodium nitrite gives dark blue crystals of:
  • A
    $\left.Ni (\text { py })_3\left( NO _2\right)\right]_2 SO _4$
  • B
    $\left.Ni (\text { py })_2\left( NO _2\right)_2\right]$
  • C
    $\left[ Ni ( py )_4\right] SO _4$
  • D
    $\left[ Ni (\text { py })_4\right]\left( NO _2\right)_2$
✓

Answer

D. $\left[ Ni (\text { py })_4\right]\left( NO _2\right)_2$
Explanation:
$\left[ Ni (\text { py })_4\right]\left( NO _2\right)_2$

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