Advertisements
Advertisements
प्रश्न
In which chemical reaction does carbon exhibit variation of oxidation state from - 4 to + 4? Write a balanced chemical reaction.
उत्तर
In the combustion of methane, carbon exhibits variation from – 4 to + 4. The reaction is as follows:
\[\ce{CH4 + 2O2->CO2 + 2H2O}\]
In CH4, the oxidation state of carbon is – 4 while in CO2, the oxidation state of carbon is + 4.
APPEARS IN
संबंधित प्रश्न
Choose the correct option.
Oxidation numbers of Cl atoms marked as Cla and Clb in CaOCl2 (bleaching powder) are
\[\begin{array}{cc} \ce{Cl^{{a}}}\phantom{.} \\/\phantom{...} \\ \ce{Ca}\phantom{......} \\ \backslash\phantom{..} \\\phantom{........} \ce{O-Cl^{{b}}}\phantom{.} \end{array}\]
Choose the correct option.
The coefficients p, q, r, s in the reaction \[\ce{{p}Cr2O7^{2Θ} + {q}Fe^{2⊕}->{r}Cr^{3⊕} + {s}Fe^{3⊕} + H2O}\] respectively are:
Choose the correct option.
Oxidation number of oxygen in superoxide is
Calculate the oxidation number of the underlined atom.
H2SO4
Calculate the oxidation number of the underlined atom.
HNO3
Calculate the oxidation number of the underlined atom.
H2S4O6
Calculate the oxidation number of the underlined atom.
Cr2O72−
What is oxidation?
Identify the following pair of species is in its oxidized state?
Cu/Cu2+
Provide the stock notation for the following compound:
HAuCl4
Provide the stock notation for the following compound:
FeO
Provide the stock notation for the following compound:
Fe2O3
Provide the stock notation for the following compound:
MnO
Which of the following redox couple is a stronger oxidizing agent?
\[\ce{MnO^Θ_4}\](E0 = 1.51 V) and \[\ce{Cr2O^{2Θ}_7}\](E0 = 1.33 V)
Which of the following redox couple is a stronger reducing agent?
Li (E0 = - 3.05 V) and Mg (E0 = - 2.36 V)
Complete the following table:
Assign oxidation number to the underlined species and write Stock notation of compound
Compound | Oxidation number | Stock notation |
AuCl3 | ||
SnCl2 | ||
\[\ce{\underline{{V}}_2O^{4-}_{7}}\] | ||
\[\ce{\underline{{Pt}}Cl^2-_6}\] | ||
H3AsO3 |
What is the oxidation number of Mn in \[\ce{MnO^{2-}_4}\] ion?
Which of the following is CORRECT?
\[\ce{H3PO4_{(aq)} + 3KOH_{(aq)} -> K3PO4_{(aq)} + 3H2O_{(l)}}\]
Which of the following is NOT an example of redox reaction?
The oxidation number of sulphur in S8 molecule is ______.
In which of the following, oxidation number of oxygen is +2?
Oxidation state of nitrogen in nitric oxide is ______.
The oxidation state of phosphorous in Mg2P2O7 is ______.
Which among the following pair of elements show highest oxidation state +7 in their different compounds?
The oxidation number of Cr in \[\ce{Cr(OH)^-_4}\] ion is ______.
The oxidation number of phosphorous in Ba(H2PO2)2 is ______.
What is the oxidation state of chlorine atom in perchloric acid?
Which of the following explanation is correct about the given below reaction?
\[\ce{Cr2O^2-_7 + H2O -> 2CrO^2-_4 + 2H+}\]