MCQ
In Brown ring $[Fe(H_2O)_5NO]SO_4$ primary valency of $Fe$ is
- ✓$+1$
- B$+2$
- C$+3$
- D$+6$
✓
Answer
Correct option: A.
$+1$
a
NO in brown ring complex has $+1$ oxidation state.
NO in brown ring complex has $+1$ oxidation state.
Let oxidation state of $Fe$ be $x$.
Since the overall charge on the coordination sphere, $\left[ Fe \left( H _2 O \right)_5 NO ^{+}\right]$is $+2$, the sum of oxidation states of all elements in it should be equal to $+2$.
Therefore, $x +1=+2$
or, $x =+1$
Hence, the oxidation state of iron in the brown ring complex is $+1$.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Which of the following is an electrovalent linkage
The increasing order of the atomic radii of the following elements is
→$(a)\; C \;\;(b)\; O \;\;(c)\; F\;\; (d) \;Cl\;\; (e)\; Br$
Match List $I$ with List $II$.
→Choose the correct answer from the options given below:
The number of coulombs required for the deposition of $107.870\,g$ of silver is
→The trivalent ion having largest size in lanthanide series is
Which of the following has highest knocking property
In a molecule of pyrophosphoric acid, the number of $P - OH , P = O$ and $P - O - P$ bonds $/$ moiety(ies) respectivey are :
→$\alpha - D - $glucose and $\beta - D - $glucose differ from each other due to difference in one of the carbons with respect to its
→The density of $3\,M$ solution of sodium chloride is $1.252\,g\,mL^{-1}$ . The molality of the solution will be ............. $\mathrm{m}$
→(molar mass, $NaCl = 585\,g\,mol^{-1}$ )
The total number of lone pairs of electrons on oxygen atoms of ozone is $...........$.
→