Single Choice

Amongst the following, identify the species with an atom in $$+6$$ oxidation state.

A$$[MnO_4]^-$$
B$$[Cr(CN)_6]^{3-}$$
Correct Answer
C$$Cr_2O_3$$
D$$CrO_2Cl_2$$

Solution

Let x be the oxidation state of the element whose oxidation no. we want to find for a compound.

Oxidation no. of Manganese (Mn) in MnO
−
4
is:
x−4(2)=−1
x=7

Oxidation no. of Chromium (Cr) in [Cr(CN)6]3− is:
x−6=−3
x=3

Oxidation no. of Chromium (Cr) in Cr2O3 is:
2x−6=0
x=3

Oxidation no. of Chromium (Cr) in CrO2Cl2 is:
x+2(−2)+1(−1)=0
x=6

Hence, option D is correct.

SIMILAR QUESTIONS

Redox Reactions

When chlorine is passed through hot concentrated caustic soda solution, the oxidation number of chlorine in one of the products increases from:

Redox Reactions

Characteristic oxidation number of atoms in free metal is

Redox Reactions

The oxidation states of sulphur in the anions, $$SO_{3}^{2-}$$, $$S_{2}O_{4}^{2-}$$ and $$S_{2}O_{6}^{2-}$$ follow the order :

Redox Reactions

Oxidation states of the metal in the minerals haematite and magnetite, respectively are:

Redox Reactions

Oxygen exhibits 0 oxidation state in:

Redox Reactions

The correct statement for the molecule $$ CsI_{3}$$ is that:

Redox Reactions

Which among the following shows maximum oxidation state?

Redox Reactions

The oxidation number of N and $$\displaystyle Cl$$ in $$\displaystyle NOCl{ O }_{ 4 }$$ respectively are :

Redox Reactions

Identify Z in the reaction given below: $$2Mn{ O}^-_4+5H_2O_2+6H^+\rightarrow 2Z+5O_2+8H_2O$$

Redox Reactions

Among the following, the correct order of acidity is

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