WorksheetsElectrochemistry
Total questions: 15
Worksheet time: 8mins
Technique used to convert one chemical parameter of a medium into an electrical parameter by an appropriate device, usually an electrode is called
Electrophoresis
Photometry
Electochemistry
Electrolysis
In electrochemistry __________________are usually linked to electronic devices that measure the electrical parameters of the reactants in solution.
salt bridge
wires
membranes
electrodes
An electroanalytical / electrochemical techniques uses ________
working electrode
reference electrode
both reference and working electrodes
working, reference and counter electrodes
The substances which give different colour indifferent medium and thus indicate the presence of acid or base in a solution are called _______
dye
indicator
reagent
chemical
___________ is an example of natural indicator.
Phenolphthalein
Litmus
Methyl orange
Bromophenol blue
The chemical equation
HIn(aq) + H2O(l) ↔ In-(aq) + H3O+(aq) represents
acid indicator
base indicator
universal indicator
chemical indicator
Which of the following will indicate a wide range of pH?
Litmus paper
pH paper
Chemical indicators
Acid Base indicators
Which among the following is an ion selective electrode?
Calomel electrode
oxygen electrode
Glass electrode
Hydrogen electrode
Standard hydrogen electrode serves as
cathode
anode
both cathode and anode
The potential difference, which is responsible for the flow of current from an electrode of higher potential to the electrode of lower potential is called
electrode potential
emf of cell
charge potential
Which among the following is a sensitive electrode that finds wide application and is also used for monitoring the ground water _________
Oxygen electrode
Glass electrode
Hydrogen electrode
Calomel electrode
The electrode that finds clinical application
Glass electrode
Hydrogen electrode
Oxygen electrode
Which of the following is the rate limiting step in oxygen electrode?
potential difference applied across electrodes
calibration of the device
diffusion of oxygen through the membrane
sample in the reaction chamber
The electrodes are maintained in electrical continuity with the help of __________
Salt bridge
wires
glass tube
buffer solution
Nernst equation is used for
finding out reduction or oxidation potential of single electrode
determining the pH
determining the acidity or alkalinity
determining the concentration of reactants ad products
