Download App

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

Gujarat BoardEnglish MediumSTD 11 ScienceJEESTD 12 - 5. Co-ordination chemistry4 Marks
MCQ
Which one of the following complexes is violet in colour?
  • A
    $\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{4-}$
  • B
    $\left[\mathrm{Fe}(\mathrm{SCN})_{6}\right]^{4-}$
  • C
    $\mathrm{Fe}_{4}\left[\mathrm{Fe}\left(\mathrm{CN}_{6}\right)\right]_{3} \cdot \mathrm{H}_{2} \mathrm{O}$
  • ✓
    $\left[\mathrm{Fe}(\mathrm{CN})_{5} \mathrm{NOS}\right]^{4}$
✓

Answer

Correct option: D.
$\left[\mathrm{Fe}(\mathrm{CN})_{5} \mathrm{NOS}\right]^{4}$
d
$(A)$ $\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{4-} \rightarrow$ Pale yellow solution

$(B)$ $\left[\mathrm{Fe}(\mathrm{SCN})_{6}\right]^{4-} \rightarrow$ Blood red colour

$(C)$ $\mathrm{Fe}_{4}\left[\mathrm{Fe}\left(\mathrm{CN}_{6}\right)\right]_{3} \cdot \mathrm{H}_{2} \mathrm{O} \rightarrow$ Prussian blue

$(D)$ $\left[\mathrm{Fe}(\mathrm{CN})_{5} \mathrm{NOS}\right]^{4} \rightarrow$ Violet colour

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

JEE STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Which of the following may exist in enantiomorphs
→
Which of the following has the least electron affinity in $kJ\,mo{l^{ - 1}}$
→
The freezing point of one molal $NaCl$ solution assuming $NaCl$ to be $100\% $ dissociated in water is  ............ $^oC$. (molal depression constant $= 1.86$)
→
Uncertainty in the position of an electron (mass $= 9.1 \times 10^{-31}\, kg$) moving with a velocity $300\, ms^{-1},$ accurate upto $0.001\%$ will be
→
Which of the following is not  expected to be intermediate of the following reaction ?
→
Identify the correct formula of oleum from the following
→
The difference in the number of unpaired electrons of a metal ion in its high-spin and low-spin octahedral complexes is two. The metal ion is
→
Normal boiling point of water is $373\,K$  (at $760\,mm$ ). Vapour pressure of water at $298\,K$ is $23\,mm$. If the enthalpy of evaporation is  $40.656\,kJ/mole$, the boiling point of water at $ 23\,mm$ pressure will be ............. $\mathrm{K}$
→
At a certain temp. the equilibrium constant $(K_C)$ is $16$ for reaction

$S{O_2} + N{O_2} \rightleftharpoons S{O_3} + NO$

If we take one mole of each of four gases in one $L$ container. What would be equilibrium concentration of $NO$ and $NO_2$ respectively

→
What is the equivalent weight of hydrochloric acid in given redox reaction

$MnO_2+ 4HCl \to MnCl_2 + 2H_2O + Cl_2$

If molar mass of hydrochloric acid is $M$.

→