Class 9 Chemistry MCQs - Chapter 2
Electrochemistry Multiple Choice Questions (MCQ) PDF Download - 6
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Electrochemistry MCQs with Answers PDF Download: Quiz 6
In chromium plating, few drops of Sulphuric acid are added to the electrolyte to prevent
- oxidation
- reduction
- hydrolysis
- sublimation
The electrodes used in the production of sodium metal are
- iron cathode and graphite anode
- sodium cathode and carbon anode
- aluminum cathode and fluoride anode
- aluminum cathode and sodium anode
In thermal power stations, carbon atoms undergo oxidation to form
- CO2
- CO
- H2O
- O2
Electrolytes convert electricity in
- solid state
- liquid state
- gaseous state
- plasma state
A concentrated aqueous solution of sodium chloride is called
- aqueous solution
- salt solution
- brine
- lemonade
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