Advertisements
Advertisements
प्रश्न
Which of the following redox couple is a stronger reducing agent?
Zn (E0 = - 0.76 V) and Fe (E0 = - 0.44 V)
उत्तर
Zn has a larger negative value of E0 than Fe. Thus, Zn is a stronger reducing agent than Fe.
APPEARS IN
संबंधित प्रश्न
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.
The process \[\ce{SO2->S2Cl2}\] is
In which chemical reaction does carbon exhibit variation of oxidation state from - 4 to + 4? Write a balanced chemical reaction.
Calculate the oxidation number of the underlined atom.
H2S4O6
Calculate the oxidation number of the underlined atom.
Cr2O72−
Justify that the following reaction is redox reaction; identify the species oxidized/reduced, which acts as an oxidant and which acts as a reductant.
\[\ce{I2_{(aq)} + 2S2O^{2-}_{3(aq)}->S4O^{2-}_{6(aq)} + 2I^-_{ (aq)}}\]
Justify the following reaction as a redox reaction.
\[\ce{2Na_{(s)} + S_{(s)}->Na2S_{(s)}}\]
Find out the oxidizing and reducing agents.
Provide the stock notation for the following compound:
HAuCl4
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 |
The oxidation number of oxygen in peroxides is ____________.
What is the oxidation number of As in H3AsO3?
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 ______.
All of these are CORRECT for the complex K4[Mn(CN)6], EXCEPT:
Oxidation state of nitrogen in nitric oxide is ______.
In which among the following compounds, oxidation number of nitrogen is + 5?
Stock notations are used to specify the oxidation numbers of ____________.
Which of the following is INCORRECT?
What is the oxidation number of Carbon in K2C2O4?
Which among the following pair of elements show highest oxidation state +7 in their different compounds?
The oxidation number of phosphorous in Ba(H2PO2)2 is ______.
What is the oxidation number of Cr in K2Cr2O7?
The brown ring complex is formulated as [Fe(H2O)5NO]SO4. The oxidation number of iron is ______.
Which of the following explanation is correct about the given below reaction?
\[\ce{Cr2O^2-_7 + H2O -> 2CrO^2-_4 + 2H+}\]
The oxidation number of oxygen in oxygen difluoride (OF2) and dioxygen difluoride (O2F2) respectively is ______.
