The galvanic cell in which the given reaction takes place is depicted as:
\(Zn_{(s)}|Zn^{2+}_{(aq)}||Ag^+_{(aq)}|Ag_{(s)}\)
(i) Zn electrode (anode) is negatively charged.
(ii) Ions are carriers of current in the cell and in the external circuit, current will flow from silver to zinc.
(iii) The reaction taking place at the anode is given by,
\(Zn_{(s)}\rightarrow Zn^{2+}_{(aq)}+2e^-\)
The reaction taking place at the cathode is given by,
\(Ag^+_{(aq)}+e^- \rightarrow Ag_{(s)}\)
An object has moved through a distance can it have zero displacement if yes support your answer with an example.
Acidified \(KMnO_4\) oxidizes sulphite to:
The correct IUPAC name of \([ \text{Pt}(\text{NH}_3)_2\text{Cl}_2 ]^{2+} \) is:
Consider the following compounds:
(i) CH₃CH₂Br
(ii) CH₃CH₂CH₂Br
(iii) CH₃CH₂CH₂CH₂Br
Arrange the compounds in the increasing order of their boiling points.
Galvanic cells, also known as voltaic cells, are electrochemical cells in which spontaneous oxidation-reduction reactions produce electrical energy. It converts chemical energy to electrical energy.
It consists of two half cells and in each half cell, a suitable electrode is immersed. The two half cells are connected through a salt bridge. The need for the salt bridge is to keep the oxidation and reduction processes running simultaneously. Without it, the electrons liberated at the anode would get attracted to the cathode thereby stopping the reaction on the whole.