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Chemistry-13-Electrochemistry
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5
1.
What is the key element used in the batteries of electric vehicles?
Magnesium
Lithium
Sodium
Bromine
2.
Galvanizing is a metallurgical process that is used to coat steel or iron with which of the following?
Zinc
Lead
Chromium
Copper
3.
Which among the following is correct regarding the alkaline battery ?
Negative terminal made of Zinc Powder and Positive terminal made of Manganese dioxide & electrolyte is KOH
Negative terminal made of Manganese dioxide and Positive terminal made of Zinc powder & electrolyte KOH
Negative terminal made of Zinc Powder and Positive terminal made of Manganese dioxide & Electrolyte is Ammonium Chloride
Negative terminal made of Manganese dioxide and Positive terminal made of Zinc powder & electrolyte Ammonium Chloride
4.
Which among the following is most advantageous in storage in fuel cells used in small, portable electronics such as phones and laptop computers?
Methanol
Hydrogen
Formic Acid
Acetic Acid
5.
What do we call the device which converts the chemical energy of a spontaneous redox reaction into electrical energy?
Galvanic cell
Fuel cell
Electrolytic cell
None of the above
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