Battery and Cell Function Concepts

The video tutorial explains how the basic concept of a battery, represented by two beakers and electrodes, translates into the batteries used in everyday devices. It covers the chemical reactions involved, particularly redox reactions, and the flow of electrons. The tutorial distinguishes between batteries and individual cells, describing various types of batteries such as dry cells, alkaline, and mercury batteries, and their components. It emphasizes the importance of proper disposal due to environmental concerns and provides an overview of different battery technologies, including those used in cars and electronic devices.

What is the primary function of a cell as explained in the introduction?

• To convert chemical energy into electrical energy

• To store mechanical energy

• To store thermal energy

• To convert electrical energy into chemical energy

In a cell, what is the role of the anode?

• To donate electrons

• To receive electrons

• To store energy

• To act as an insulator

What is the main difference between a cell and a battery?

• A battery is a series or parallel combination of cells

• A battery stores mechanical energy

• A cell is larger than a battery

• A cell can be recharged, but a battery cannot

Which type of cell uses a paste of ammonium chloride and zinc chloride as its electrolyte?

• Dry cell

• Alkaline cell

• Mercury cell

• Lithium-ion cell

What is the main advantage of alkaline cells over dry cells?

• They are more environmentally friendly

• They are cheaper

• They have a longer shelf life and higher voltage

• They are smaller in size

Which type of cell is commonly used in wristwatches?

• Nickel-cadmium cell

• Alkaline cell

• Dry cell

• Mercury cell

What is the electrolyte used in automotive batteries?

• Ammonium chloride

• Zinc chloride

• Sodium hydroxide

• Sulfuric acid

Which type of battery is commonly used in laptops and smartphones?

• Nickel-cadmium battery

• Lead-acid battery

• Mercury battery

• Lithium-ion battery

What is the anode material in a lithium-ion battery?

• Lead

• Cadmium

• Zinc

• Graphite

Why is it important to dispose of batteries and cells properly?

• To reduce energy consumption

• To prevent environmental pollution

• To save space in landfills

• To recycle metals