Electrochemistry questions
1808 published questions with worked solutions.
- The Gibb's energy for the decomposition of Al_2O_3 at 500℃ is as follows: 2 3 Al_2O_3 4 3 Al + O_2 , G = +966 kJ mol^ -1 . The...
- The platinised plate in SHE is used as _________ [MH CET 2008]
- What is standard electrode potential of calomel electrode when unimolar KCl is used?
- The reduction potential of hydrogen half-cell will be negative if ________ [AIEEE 2011]
- Standard hydrogen electrode _________ [MH CET 2007]
- Which colourless gas evolves, when NH_4Cl reacts with zinc in a dry cell battery?
- Specific gravity of sulphuric acid in lead accumulator is ________
- Dry cell converts _________ [MH CET 2003]
- Which of the following statements is TRUE for fuel cells? [AFMC 2000]
- Which of the following is NOT used in hydrogen – oxygen fuel cell?
- Which of the following reaction is used to make a fuel cell? [AIIMS 2003]
- In a hydrogen – oxygen fuel cell, combustion of hydrogen occurs to _______ [AIEEE 2004]
- Standard reduction electrode potentials of three metals A, B and C are respectively +0.5 V, −3.0 V and −1.2 V. The reducing...
- The standard reduction potentials for Zn^ 2+ /Zn , Ni^ 2+ /Ni and Fe^ 2+ /Fe are −0.76, −0.23 and −0.44 V respectively. The...
- The CORRECT order of E^ _ M^ 2+ /M values with negative sign for the four successive elements Cr, Mn, Fe and Co is _________...
- The E^ _ M^ 3+ /M^ 2+ values for Cr, Mn, Fe and Co are −0.41, +1.57, +0.77 and +1.97 V respectively. For which one of these...
- The standard oxidation potential values of A, B, C and D are −0.03 V, +0.108 V, −0.07 V and +0.1 V respectively. The spontaneous...
- The highest electrical conductivity of the following aqueous solution is of _________ [AIEEE 2005]
- When the sample of copper with zinc impurity is to be purified by electrolysis, the appropriate electrodes are ________ [AIEEE...
- The standard reduction potentials of Cu^ 2+ /Cu and Cu^ 2+ /Cu^+ are 0.337 and 0.153 V respectively. The standard electrode...
Other chapters
Alcohols, Phenols and EthersAldehydes, Ketones and Carboxylic AcidsAlternating CurrentAminesAnatomy of Flowering PlantsAncient Indian HistoryAnimal KingdomApplication of DerivativesArea Under CurveAromatic Compounds and Aryl HalidesAtomsBasic Mathematics and LogarithmBinomial TheoremBiodiversity and ConservationBiological ClassificationBiomoleculesBiotechnology and Its ApplicationsBiotechnology: Principles and ProcessesBody Fluids and CirculationBreathing and Exchange of GasesCell Cycle and Cell DivisionCell: The Unit of LifeChemical Bonding and Molecular StructureChemical Coordination and Integration