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Test: Electroplating & Ionic Half Equations & Hydrogen-Oxygen Fuel Cell - Grade 11 MCQ


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10 Questions MCQ Test Chemistry for Grade 11 (IGCSE) - Test: Electroplating & Ionic Half Equations & Hydrogen-Oxygen Fuel Cell

Test: Electroplating & Ionic Half Equations & Hydrogen-Oxygen Fuel Cell for Grade 11 2024 is part of Chemistry for Grade 11 (IGCSE) preparation. The Test: Electroplating & Ionic Half Equations & Hydrogen-Oxygen Fuel Cell questions and answers have been prepared according to the Grade 11 exam syllabus.The Test: Electroplating & Ionic Half Equations & Hydrogen-Oxygen Fuel Cell MCQs are made for Grade 11 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Electroplating & Ionic Half Equations & Hydrogen-Oxygen Fuel Cell below.
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Test: Electroplating & Ionic Half Equations & Hydrogen-Oxygen Fuel Cell - Question 1

In a hydrogen fuel cell, which element provides electrons at one electrode?

Detailed Solution for Test: Electroplating & Ionic Half Equations & Hydrogen-Oxygen Fuel Cell - Question 1
In a hydrogen fuel cell, hydrogen provides electrons at one electrode. This process is crucial for the electrochemical reaction that takes place within the fuel cell. By splitting hydrogen molecules into protons and electrons, hydrogen serves as the fuel source that initiates the generation of electricity in the cell.
Test: Electroplating & Ionic Half Equations & Hydrogen-Oxygen Fuel Cell - Question 2

What is the primary byproduct generated in a hydrogen fuel cell when hydrogen and oxygen react?

Detailed Solution for Test: Electroplating & Ionic Half Equations & Hydrogen-Oxygen Fuel Cell - Question 2
The primary byproduct generated in a hydrogen fuel cell when hydrogen and oxygen react is water. This clean and environmentally friendly process highlights one of the significant advantages of utilizing hydrogen fuel cells as an alternative energy source. Water is the only byproduct produced, making it a sustainable and attractive technology for various applications.
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Test: Electroplating & Ionic Half Equations & Hydrogen-Oxygen Fuel Cell - Question 3

Which type of cell is a hydrogen fuel cell?

Detailed Solution for Test: Electroplating & Ionic Half Equations & Hydrogen-Oxygen Fuel Cell - Question 3
A hydrogen fuel cell is classified as an electrochemical cell. In this type of cell, chemical energy is converted directly into electrical energy through electrochemical reactions. The hydrogen fuel cell utilizes the chemical potential energy stored in hydrogen to produce electricity by facilitating the movement of electrons through an external circuit, powering various devices and systems.
Test: Electroplating & Ionic Half Equations & Hydrogen-Oxygen Fuel Cell - Question 4
What happens at the cathode in a hydrogen fuel cell?
Detailed Solution for Test: Electroplating & Ionic Half Equations & Hydrogen-Oxygen Fuel Cell - Question 4
At the cathode in a hydrogen fuel cell, oxygen is reduced. Reduction occurs at this electrode as oxygen molecules accept electrons and combine with protons to form water. This crucial step in the fuel cell reaction contributes to the overall generation of electricity and the production of water as a clean byproduct.
Test: Electroplating & Ionic Half Equations & Hydrogen-Oxygen Fuel Cell - Question 5
What is a key advantage of hydrogen fuel cells over traditional petrol engines?
Detailed Solution for Test: Electroplating & Ionic Half Equations & Hydrogen-Oxygen Fuel Cell - Question 5
One major advantage of hydrogen fuel cells compared to traditional petrol engines is their ability to yield higher energy output per kilogram. This means that they can provide more energy efficiency, making them a promising alternative in the automotive industry.
Test: Electroplating & Ionic Half Equations & Hydrogen-Oxygen Fuel Cell - Question 6
Why is storing hydrogen considered more challenging and expensive than storing petrol?
Detailed Solution for Test: Electroplating & Ionic Half Equations & Hydrogen-Oxygen Fuel Cell - Question 6
Storing hydrogen is more challenging and expensive than storing petrol primarily due to hydrogen's high flammability. This property of hydrogen makes it more difficult to handle and store safely, as it can lead to potential explosions under pressure.
Test: Electroplating & Ionic Half Equations & Hydrogen-Oxygen Fuel Cell - Question 7
What is a disadvantage of fuel cells in relation to low temperatures?
Detailed Solution for Test: Electroplating & Ionic Half Equations & Hydrogen-Oxygen Fuel Cell - Question 7
Fuel cells experience reduced efficiency in low temperatures. This limitation can impact their performance and effectiveness, particularly in environments where temperatures are colder, affecting their ability to generate energy efficiently.
Test: Electroplating & Ionic Half Equations & Hydrogen-Oxygen Fuel Cell - Question 8
Why is there a limited availability of hydrogen filling stations nationwide?
Detailed Solution for Test: Electroplating & Ionic Half Equations & Hydrogen-Oxygen Fuel Cell - Question 8
The limited availability of hydrogen filling stations nationwide is primarily due to the lack of infrastructure to support widespread adoption. Building the necessary infrastructure for hydrogen refueling stations requires significant investment and planning, which contributes to the current scarcity of such facilities across the country.
Test: Electroplating & Ionic Half Equations & Hydrogen-Oxygen Fuel Cell - Question 9
Why is it essential to balance charges in ionic half-equations?
Detailed Solution for Test: Electroplating & Ionic Half Equations & Hydrogen-Oxygen Fuel Cell - Question 9
Balancing charges in ionic half-equations is crucial to maintain the overall charge neutrality in a chemical reaction. By ensuring that the total charge on both sides of the equation is equal, the principles of conservation of charge are upheld. This balance is necessary for the accurate representation of the electron transfer processes that occur during oxidation and reduction reactions in electrochemistry.
Test: Electroplating & Ionic Half Equations & Hydrogen-Oxygen Fuel Cell - Question 10
What occurs at the anode during electrochemical reactions?
Detailed Solution for Test: Electroplating & Ionic Half Equations & Hydrogen-Oxygen Fuel Cell - Question 10
At the anode in electrochemical reactions, negatively charged ions lose electrons and undergo oxidation. This process leads to the generation of electrons that flow through the external circuit to the cathode, facilitating the overall electrochemical reaction. Understanding the distinct roles of the anode and cathode is crucial in comprehending the flow of electrons and the transformation of substances during electrochemistry.
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