Q1ChemistryUnit 7: Redox Reactions and Electrochemistry
One drop of methyl orange solution
when added to the solution obtained
after electrolysis of a concentrated solution of NaCl with Pt electrodes, the
colour of the solution will turn:
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Electrolytic and metallic conduction, conductance in electrolytic solutions, molar conductivities and their variation with concentration, Kohlrausch's law and its applications Previous Year Questions for JEE
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Syllabus context
Part of Redox Reactions and Electrochemistry in JEE Main Chemistry.
- Electronic concepts of oxidation and reduction, redox reactions, oxidation number, rules for assigning oxidation number and balancing of redox reactions
- Electrolytic and metallic conduction, conductance in electrolytic solutions, molar conductivities and their variation with concentration, Kohlrausch's law and its applications
- Electrochemical cells: Electrolytic and Galvanic cells, different types of electrodes, electrode potentials including standard electrode potential, half-cell and cell reactions
- Emf of a Galvanic cell and its measurement, Nernst equation and its applications, relationship between cell potential and Gibbs' energy change
- Dry cell and lead accumulator, fuel cells
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Q2ChemistryUnit 7: Redox Reactions and Electrochemistry
A chemist wants to produce
from molten How many grams could be produced if he uses a steady current of 2 ampere for 2.5 minutes :-
Q3ChemistryUnit 7: Redox Reactions and Electrochemistry
The volume of gases evolved at by
passing of current for through an aqueous solution of
potassium acetate:
Q4ChemistryUnit 7: Redox Reactions and Electrochemistry
A certain current liberated 0.504 g of
hydrogen in 2 hours. How many grams of copper can be liberated by the same current flowing for the same time in copper sulphate solution?
Q5ChemistryUnit 7: Redox Reactions and Electrochemistry
On passing a current through a molten aluminium chloride for some time
produced 11.28 lit of at at anode.
The quantity of aluminium deposited at
cathode is:
Q6ChemistryUnit 7: Redox Reactions and Electrochemistry
The resistance of solution of acetic
acid is when measured in a cell
having a cell constant of The
equivalent conduction (in oh ) of acetic acid is
Q7ChemistryUnit 7: Redox Reactions and Electrochemistry
The weight of silver (At. Wt. = 108) displaced by a quantity of electricity
which displaces of at STP will be
Q8ChemistryUnit 7: Redox Reactions and Electrochemistry
When the power delivered by a 100 volt battery is 40 watts, the equivalent resistance of the circuit is:
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