Answer
Verified
354.9k+ views
Hint:This question gives knowledge about oxidation number. Oxidation number is the charge present on an atom when it forms ionic bonds with different heteroatoms. Oxidation number is also termed as oxidation state.
Complete step-by-step answer:Oxidation number is the charge present on an atom when it forms ionic bonds with different heteroatoms. Oxidation number is also termed as oxidation state.
Let the oxidation state of iron be $x$.
Now, consider $FeS{O_4}.{\left( {N{H_4}} \right)_2}S{O_4}.6{H_2}O$ to determine the oxidation state of iron. Oxidation state is basically the sum of the charges of all the atoms present in the given compound. In this molecule, the oxidation state of sulphate ion is $ - 2$, ammonium ion is $ + 1$ and the water molecule is $0$. The overall charge on this compound is $0$. On summing up all the charges along with their molecularity we observe that the oxidation number of iron is $ + 2$.
Consider ${K_4}\left[ {Fe{{\left( {CN} \right)}_6}} \right]$ to determine the oxidation state of iron. In this molecule, the oxidation state of cyanide ion is $ - 1$ and potassium is $ + 1$ . The overall charge on this compound is $0$. On summing up all the charges along with their molecularity we observe that the oxidation number of iron is $ + 2$.
Consider $F{e_2}O$ to determine the oxidation state of iron. In this molecule, the oxidation state of oxide ions is $ - 2$. The overall charge on this compound is $0$. On summing up all the charges along with their molecularity we observe that the oxidation number of iron is $ + 1$.
Consider $F{e_2}{O_3}$ to determine the oxidation state of iron. In this molecule, the oxidation state of oxide ions is $ - 2$. The overall charge on this compound is $0$. On summing up all the charges along with their molecularity we observe that the oxidation number of iron is $ + 3$.
$F{e_2}O$ has the lowest oxidation number of iron.
Therefore, option $3$ is the correct option.
Note: The elements or atoms which are electronegative in nature possess negative charge and the atoms which are electropositive in nature carry positive charge. The molecularity of an atom present in a molecule also plays an important role while determining the oxidation state.
Complete step-by-step answer:Oxidation number is the charge present on an atom when it forms ionic bonds with different heteroatoms. Oxidation number is also termed as oxidation state.
Let the oxidation state of iron be $x$.
Now, consider $FeS{O_4}.{\left( {N{H_4}} \right)_2}S{O_4}.6{H_2}O$ to determine the oxidation state of iron. Oxidation state is basically the sum of the charges of all the atoms present in the given compound. In this molecule, the oxidation state of sulphate ion is $ - 2$, ammonium ion is $ + 1$ and the water molecule is $0$. The overall charge on this compound is $0$. On summing up all the charges along with their molecularity we observe that the oxidation number of iron is $ + 2$.
Consider ${K_4}\left[ {Fe{{\left( {CN} \right)}_6}} \right]$ to determine the oxidation state of iron. In this molecule, the oxidation state of cyanide ion is $ - 1$ and potassium is $ + 1$ . The overall charge on this compound is $0$. On summing up all the charges along with their molecularity we observe that the oxidation number of iron is $ + 2$.
Consider $F{e_2}O$ to determine the oxidation state of iron. In this molecule, the oxidation state of oxide ions is $ - 2$. The overall charge on this compound is $0$. On summing up all the charges along with their molecularity we observe that the oxidation number of iron is $ + 1$.
Consider $F{e_2}{O_3}$ to determine the oxidation state of iron. In this molecule, the oxidation state of oxide ions is $ - 2$. The overall charge on this compound is $0$. On summing up all the charges along with their molecularity we observe that the oxidation number of iron is $ + 3$.
$F{e_2}O$ has the lowest oxidation number of iron.
Therefore, option $3$ is the correct option.
Note: The elements or atoms which are electronegative in nature possess negative charge and the atoms which are electropositive in nature carry positive charge. The molecularity of an atom present in a molecule also plays an important role while determining the oxidation state.
Recently Updated Pages
Basicity of sulphurous acid and sulphuric acid are
Three beakers labelled as A B and C each containing 25 mL of water were taken A small amount of NaOH anhydrous CuSO4 and NaCl were added to the beakers A B and C respectively It was observed that there was an increase in the temperature of the solutions contained in beakers A and B whereas in case of beaker C the temperature of the solution falls Which one of the following statements isarecorrect i In beakers A and B exothermic process has occurred ii In beakers A and B endothermic process has occurred iii In beaker C exothermic process has occurred iv In beaker C endothermic process has occurred
What is the stopping potential when the metal with class 12 physics JEE_Main
The momentum of a photon is 2 times 10 16gm cmsec Its class 12 physics JEE_Main
How do you arrange NH4 + BF3 H2O C2H2 in increasing class 11 chemistry CBSE
Is H mCT and q mCT the same thing If so which is more class 11 chemistry CBSE
Trending doubts
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
Difference Between Plant Cell and Animal Cell
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
Fill the blanks with proper collective nouns 1 A of class 10 english CBSE
Change the following sentences into negative and interrogative class 10 english CBSE
Give 10 examples for herbs , shrubs , climbers , creepers
What organs are located on the left side of your body class 11 biology CBSE
The Equation xxx + 2 is Satisfied when x is Equal to Class 10 Maths
What is pollution? How many types of pollution? Define it