Redox Reactions
Get insights from 164 questions on Redox Reactions, answered by students, alumni, and experts. You may also ask and answer any question you like about Redox Reactions
Follow Ask QuestionQuestions
Discussions
Active Users
Followers
New answer posted
4 months agoContributor-Level 10
This is a Long answer type question as classified in NCERT Exemplar
On the basis of standard reduction potential suggested in the reactivity series (ii) reaction can take place as Mg has more negative value of E? cell. Hence, Mg will be oxidized by losing electron and iron will be reduced by gaining electron.
New answer posted
4 months agoContributor-Level 10
This is a Long answer type question as classified in NCERT Exemplar
The given reaction is a redox change.
2Na (s)+H2 (g)→2NaH (s)
The half reaction is:
2Na (s)→2Na+ (g)+2e-
The other half reaction is:
H2 (g)+2e-→2H- (g)
This splitting of the reaction into two half-reactions automatically reveals here that sodium is oxidized, and hydrogen is reduced. Any substance which loses electron is oxidized and gains electron is reduced hence is the case of sodium and hydrogen atoms respectively. Hence, the complete reaction is a redox change.
New answer posted
4 months agoContributor-Level 10
The potential associated with each electrode is known as electrode potential. If the concentration of each species taking part in the electrode reaction is unity (if any gas appears in the electrode reaction, it is confined to 1 atmospheric pressure) and further there action is carried out at 298K, then the potential of each electrode is said to be the Standard Electrode Potential. By convention, the standard electrode potential (E? ) of hydrogen electrode is 0.00 volts. The electrode potential value for each electrode process is a measure of the relative tendency of the active species in the process to remainin the oxidised/reduced fo
New answer posted
4 months agoContributor-Level 10
Two methods are used to balance chemical equations for redox processes. One of these methods is based on the change in the oxidation number of reducing agent and the oxidising agent (i.e. oxidation number method) and the other method is based on splitting the redox reaction into two half reactions — one involving oxidation and the other involving reduction (half reaction method). Both these methods are in use and the choice of their use rests with the individual using them.
New answer posted
4 months agoContributor-Level 10
(a) Combination reactions (b) Decomposition reactions (c) displacement reactions (d) Disproportionation reactions.
New answer posted
4 months agoContributor-Level 10
Electrochemical series is the series of elements in which elements are arranged in decreasing order of their reduction potential.
Reducing power goes on increasing whereas oxidising power goes on decreasing down the series.
New answer posted
4 months agoContributor-Level 10
Electrochemical cell is a device in which the redox reaction is carried indirectly and the decrease in free energy appears as electrical energy.
At cathode there is gain of electrons.
At anode there is loss of electrons.
In electrochemical cell anode is written on L.H.S while cathode is written on R.H.S.
New answer posted
4 months agoContributor-Level 10
(b) Oxidation involves gain of one or more electrons by a species during a reaction.
New question posted
4 months agoTaking an Exam? Selecting a College?
Get authentic answers from experts, students and alumni that you won't find anywhere else
Sign Up on ShikshaOn Shiksha, get access to
- 65k Colleges
- 1.2k Exams
- 687k Reviews
- 1800k Answers