Class 7 Exam > Class 7 Videos > Science (Curiosity) Class 7 - New NCERT > Corrosion and Rust
Corrosion and Rust Video Lecture | Science (Curiosity) Class 7 - New NCERT
FAQs on Corrosion and Rust Video Lecture - Science (Curiosity) Class 7 - New NCERT
| 1. What is corrosion and how does it occur? |  |
Ans.Corrosion is the process where metals deteriorate due to chemical reactions with their environment. It usually occurs when metals react with moisture, oxygen, and other chemicals in the air or water, leading to the formation of rust in iron and other similar compounds in different metals.
| 2. Why does rust form on iron and steel? | |
Ans.Rust forms on iron and steel when they react with water and oxygen in the presence of electrolytes, such as salt. This chemical reaction results in iron oxide, which is commonly known as rust. The presence of moisture accelerates this process, making rust more likely to form in humid conditions.
| 3. How can we prevent corrosion? | |
Ans.Corrosion can be prevented through various methods such as applying protective coatings (like paint or galvanization), using corrosion-resistant materials, and regularly maintaining and inspecting metal surfaces to catch early signs of corrosion. Additionally, keeping metals dry and avoiding exposure to saltwater can also help.
| 4. What are the different types of corrosion? | |
Ans.There are several types of corrosion, including uniform corrosion (even wear over a surface), pitting corrosion (localized damage), galvanic corrosion (caused by two different metals in contact), and crevice corrosion (in narrow spaces). Each type occurs under specific conditions and can affect metals differently.
| 5. Is rust harmful to structures and objects? | |
Ans.Yes, rust can be very harmful to structures and objects made of iron and steel. It compromises the integrity of the metal, leading to weakened structures, reduced functionality, and potential failure of the objects. Regular maintenance and prevention strategies are essential to minimize the impact of rust.
About this Video
4.72/5
Rating
Sep 26, 2025
Last updated
Related Exams
Video Description: Corrosion and Rust for Class 7 2025 is part of Science (Curiosity) Class 7 - New NCERT preparation.
The notes and questions for Corrosion and Rust have been prepared according to the Class 7 exam syllabus.
Information about Corrosion and Rust covers all important topics for Class 7 2025 Exam.
Find important definitions, questions, notes, meanings, examples, exercises and tests below for Corrosion and Rust.
Introduction of Corrosion and Rust in English is available as part of our Science (Curiosity) Class 7 - New NCERT for Class 7 & Corrosion and Rust in
Hindi for Science (Curiosity) Class 7 - New NCERT course. Download more important topics related with notes, lectures and mock test series for
Class 7 Exam by signing up for free.
Description
Video Lecture & Questions for Corrosion and Rust Video Lecture | Science (Curiosity) Class 7 - New NCERT - Class 7 full syllabus preparation | Free video for Class 7 exam to prepare for Science (Curiosity) Class 7 - New NCERT.
Information about Corrosion and Rust
Here you can find the meaning of Corrosion and Rust defined & explained in the simplest way possible.
Besides explaining types of Corrosion and Rust theory, EduRev gives you an ample number of questions to practice Corrosion and Rust tests,
examples and also practice Class 7 tests.
Related Searches
past year papers
,Objective type Questions
,Free
,Important questions
,study material
,shortcuts and tricks
,Corrosion and Rust Video Lecture | Science (Curiosity) Class 7 - New NCERT
,Corrosion and Rust Video Lecture | Science (Curiosity) Class 7 - New NCERT
,Sample Paper
,mock tests for examination
,Exam
,Extra Questions
,MCQs
,ppt
,Previous Year Questions with Solutions
,Corrosion and Rust Video Lecture | Science (Curiosity) Class 7 - New NCERT
,video lectures
,Viva Questions
,Semester Notes
,Summary
,practice quizzes
;
Study Corrosion and Rust on the App
Students of Class 7 can study Corrosion and Rust alongwith tests & analysis from the EduRev app,
which will help them while preparing for their exam. Apart from the Corrosion and Rust,
students can also utilize the EduRev App for other study materials such as previous year question papers, syllabus, important questions, etc.
The EduRev App will make your learning easier as you can access it from anywhere you want.
The content of Corrosion and Rust is prepared as per the latest Class 7 syllabus.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup