19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
At 18º C, the conductance of H+ and CH3COO– at infinite dilution are 315 and 35 mho cn2 eq–1 respectively. The equivalent conductivity of CH3 COOH at infinite dilution is…..mho cm2 eq–1 [CBSE AIPMT 2010]
When iron is rusted, it is [MP PMT 2010]
The conductivity of 0.20 M KCl solution at 298 K is 0.0248 S cm–1. What will be molar conductivity? [Haryana PMT 2010] (a)124 S cm2 (b)124 S cm–1 (c)124 S ohm–1 cm2 equiv–1 (d)124 S cm2 mol–1
The equivalent conductance of M / 32 solution of a weak monobasic acid is 8.0 mho cm2 eq–1and at infinite dilution is 400 mho cm2 eq–1. The dissociation constant of this acid is [CBSE AIPMT 2010]
How many coulombs are required to deposit 50 g of aluminium when the electrode reaction is Al 3e Al -> [RPMT 2010]
Which cell converts electrical energy into chemical energy?
What is the cell reaction occurring in Daniell cell (Galvanic cell)? (a) Cu s ZnSO aq CuSO aq Zn s -> (b) Zn s CuSO aq Cu s ZnSO -> (c) Ni s ZnSO aq NiSO s Zn s -> (d) 2Na s CdSO aq Na SO aq…
Galvanic cell is a device in which
Which one of the following is not a function of a salt bridge?
The reduction potential at 25oC for Fe3+|Fe2+ electrode is +0.718 V. If , the ratio of molar concentrations of Fe2+ to Fe3+ ions in solution is (2.303RT/F = 0.06, log 5 = 0.7)
When metallic copper is shaken with a solution of a copper salt, the reaction proceeds. When equilibrium is established at 298 K, [Cu2+]/[Cu+]2 = 1.667 × 106 M–1. If the standard potential of the Cu2+ | Cu half-cell i…
Two students use same stock solution of ZnSO4 but different solutions of CuSO4. The EMF of one cell is 0.03 V higher than the other. The concentration of CuSO4 in the cell with higher EMF value is 0.5 M. The concentra…
Which cell converts electrical energy into chemical energy?
Two students use same stock solution of ZnSO4 but different solutions of CuSO4. The EMF of one cell is 0.03 V higher than the other. The concentration of CuSO4 in the cell with higher EMF value is 0.5 M. The concentra…
The conductivity of 0.20 M KCl solution at 298 K is 0.0248 S cm–1. What will be molar conductivity? [Haryana PMT 2010] (a)124 S cm2 (b)124 S cm–1 (c)124 S ohm–1 cm2 equiv–1 (d)124 S cm2 mol–1
The equivalent conductance of M / 32 solution of a weak monobasic acid is 8.0 mho cm2 eq–1and at infinite dilution is 400 mho cm2 eq–1. The dissociation constant of this acid is [CBSE AIPMT 2010]
How many coulombs are required to deposit 50 g of aluminium when the electrode reaction is Al 3e Al -> [RPMT 2010]
For the reduction of silver ions with copper metal, the standard cell potential was found to be +0.46 V at 25ºC. The value of standard Gibbs energy, ∆Gº will be (F = 96500 C mol–1) [CBSE AIPMT 2010]
Standard electrode potential for Sn4+/Sn2+ couple is +0.15 V and that for the Cr3+/Cr couple is –0.74V. These two couples in their standard state are connected to make a cell. The cell potential will be: [AIPMT 2011]
Cr O 14H 6e 2Cr 7H O; -> E 1.33V. At [Cr O ]l 4.5 millimoles, [Cr3+] = 15 millimoles, E is 1.067 V. The pH of the solution is nearly equal to [KCET 2016]
What is the cell reaction occurring in Daniell cell (Galvanic cell)? (a) Cu s ZnSO aq CuSO aq Zn s -> (b) Zn s CuSO aq Cu s ZnSO -> (c) Ni s ZnSO aq NiSO s Zn s -> (d) 2Na s CdSO aq Na SO aq…
When iron is rusted, it is [MP PMT 2010]
At 18º C, the conductance of H+ and CH3COO– at infinite dilution are 315 and 35 mho cn2 eq–1 respectively. The equivalent conductivity of CH3 COOH at infinite dilution is…..mho cm2 eq–1 [CBSE AIPMT 2010]
Assertion (A) On dilution, the equivalent as well as molar conductivity of solution increases. Reason (R) With dilution, the number of current carrying particles per cm3 increases. [AIIMS 2010]
Which of the following expressions correctly represents the equivalent conductance at infinite dilution of Al2(SO4)3, Given that o Al and o SO are the equivalent conductance at infinite dilution of the respective …