Which of the following statements is incorrect regarding electrochemistry? (a) It is the study o...

Channel:
PW Solutions
Subscribers:
449,000
Published on ● Video Link: https://www.youtube.com/watch?v=5msyIf9l2MI


Duration: 7:03
0 views
0

Which of the following statements is incorrect regarding electrochemistry?
(a) It is the study of production of electricity from energy released during spontaneous chemical reactions.
(b) \( \mathrm{NaOH}, \mathrm{Cl}_{2} \), alkali and alkaline earth metals are prepared by electrochemical methods.
(c) The demerit associated with electrochemical methods is that they are more polluting. Thus they are ecodestructive.
(d) Electrochemical reactions are more energy efficient and less polluting.
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live



Other Videos By PW Solutions


2022-10-26A smuggler could not carry gold by depositing iron on the gold surface since (a) gold is denser ...
2022-10-26Standard electrode potential of three metals \( \mathrm{X}, \mathrm{Y} \) and \( \mathrm{Z} \) a...
2022-10-26According to Nernst equation, which is not correct if \( \mathrm{Q}=\mathrm{K}_{\mathrm{c}} \) :...
2022-10-26Consider the following cell reaction: \( 2 \mathrm{Fe}(s)+\mathrm{O}_{2}(g)+4 \mathrm{H}^{+}(a q...
2022-10-26For the galvanic cell \( \mathrm{Zn}\left|\mathrm{Zn}^{2+}(0.1 \mathrm{M}) \| \mathrm{Cu}^{2+}(1...
2022-10-26Given that the standard reduction potentials for \( \mathrm{M}^{+} / \mathrm{M} \) and \( \mathr...
2022-10-26The standard emf of a cell, involving one electron change is found to be \( 0.591 \mathrm{~V} \)...
2022-10-26Standard reduction potentials of the half reactions are given below : \[ \begin{array}{l} \mathr...
2022-10-26What flows in the internal circuit of a galvanic cell? (a) Ions (b) Electrons (c) Electricity
2022-10-26Reaction that takes place at graphite anode in dry cell is (a) \( \mathrm{Zn}^{2+}+2 \mathrm{e}^...
2022-10-26Which of the following statements is incorrect regarding electrochemistry? (a) It is the study o...
2022-10-26What flows in the internal circuit of a galvanic cell? (a) Ions (b) Electrons (c) Electricity
2022-10-26Which of the following statements about galvanic cell is incorrect (a) anode is positive (b) oxi...
2022-10-26Which one is not called a anode reaction from the following? (a) \( \mathrm{Cl}^{-} \rightarrow ...
2022-10-26What will be the emf for the given cell \( \mathrm{Pt}\left|\mathrm{H}_{2}\left(P_{1}\right)\rig...
2022-10-26Which device converts chemical energy of a spontaneous redox reaction into electrical energy? (a...
2022-10-26At \( 25^{\circ} \mathrm{C} \), the highest osmotic pressure is exhibited by \( 0.1 \mathrm{M} \...
2022-10-26In the electrochemical reaction \( 2 \mathrm{Fe}^{3+}+\mathrm{Zn} \longrightarrow \mathrm{Zn}^{2...
2022-10-26The standard e.m.f. of a galvanic cell involving cell reaction with \( \mathrm{n}=2 \) is found ...
2022-10-26The oxidation potentials of \( \mathrm{A} \) and \( \mathrm{B} \) are \( +2.37 \) and \( +1.66 \...
2022-10-26A button cell used in watches functions as following \( \mathrm{Zn}(\mathrm{s})+\mathrm{Ag}_{2} ...


Tags:
pw