Advertisements
Advertisements
प्रश्न
What is oxidation?
Advertisements
उत्तर
Oxidation is a process that involves the loss of one or more electrons from a substance.
APPEARS IN
संबंधित प्रश्न
Choose the correct option.
A compound contains atoms of three elements A, B, and C. If the oxidation state of A is +2, B is +5 and that of C is -2, the compound is possibly represented by
In which reaction does nitrogen exhibit variation of oxidation state from –3 to +5?
Calculate the oxidation number of the underlined atom.
HNO3
Calculate the oxidation number of the underlined atom.
H3PO3
Calculate the oxidation number of the underlined atom.
H2S4O6
Calculate the oxidation number of the underlined atom.
NaH2PO4
Justify that the following reaction is redox reaction; identify the species oxidized/reduced, which acts as an oxidant and which acts as a reductant.
\[\ce{I2_{(aq)} + 2S2O^{2-}_{3(aq)}->S4O^{2-}_{6(aq)} + 2I^-_{ (aq)}}\]
Provide the stock notation for the following compound:
Fe2O3
Provide the stock notation for the following compound:
MnO
Assign oxidation number atom in the following species.
\[\ce{Cr(OH)^Θ_4}\]
Which of the following redox couple is a stronger reducing agent?
Zn (E0 = - 0.76 V) and Fe (E0 = - 0.44 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 As in H3AsO3?
What is the oxidation number of Mn in \[\ce{MnO^{2-}_4}\] ion?
Which of the following is NOT an example of redox reaction?
Match the following.
| Compound | Oxidation no. of underlined element |
| i. \[\ce{\underline{C}_4H4O^{2-}_6}\] | a. +2.5 |
| ii. \[\ce{\underline{N}_3H}\] | b. +1.5 |
| iii. \[\ce{Mg2\underline{P}_2O7}\] | c. +5 |
| iv. \[\ce{Na2\underline{S}_4O6}\] | d. `-1//3` |
In which among the following compounds, oxidation number of nitrogen is + 5?
When methane undergoes combustion in air, the oxidation number of C ____________.
Which of the following is INCORRECT?
The sum of oxidation number of all atoms in \[\ce{S2O^{2-}_3}\] ion is ______.
What is the oxidation number of Carbon in K2C2O4?
Carbon is present in highest oxidation number in ______.
The oxidation number of Cr in \[\ce{Cr(OH)^-_4}\] ion is ______.
Which of the following explanation is correct about the given below reaction?
\[\ce{Cr2O^2-_7 + H2O -> 2CrO^2-_4 + 2H+}\]
