Fibres and Plastic | Jawahar Navodaya vidyalaya Science class 9 | Navodaya vidyalaya entrance Exam|

In this video we are going to study one of the most important Chapter of Jawahar Navodaya vidyalaya entrance exam class 9 Science chapter that is Fibres and Plastic. First we will see what is Fibres, Yarn and Fiberic. The.…

Fibres and Plastic | Jawahar Navodaya vidyalaya Science class 9 | Navodaya vidyalaya entrance Exam|

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In this video we are going to study one of the most important Chapter of Jawahar Navodaya vidyalaya entrance exam class 9 Science chapter that is Fibres and Plastic. First we will see what is Fibres, Yarn and Fiberic. The. We see what is Polymers and Synthetic Polymers and Natural Polymers. Then we will study Synthetic fibres with its Characteristics and types. Then we will move to the type of Synthetic fibres. After that we will study Rayon, Nylon, Polyester, Acrylic in Full details with their Characteristics and Uses. Then we will move to Plastic and it’s Types like Polythene, Bakelite, Melamine ,PVC and Teflon with their uses. Then we will study the types of plastic – Thermosetting Plastic and Thermoplastic . then We will See the structure difference of Plastic . Then we will solve most important question of this chapter which may be asked in our Jawahar Navodaya vidyalaya.

⏱️⏱️ Time of topics ⏱️⏱️
00:00 Fibres and Plastic
02:02 What is fibres,Yarn and Fabric
03:25 Types of fibres – Natural fibres and Synthetic fibres
04:00 Natural fibres, it’s types and source
04:41 Synthetic polymer
07:13 Synthetic fibres and it’s types
08:13 Rayon – it’s Characteristics and Uses
10:25 Nylon – it’s Characteristics and Uses
13:52 Polyester – it’s Characteristics and Uses
16:56 Acrylic – it’s Characteristics and Uses
21:16 Characteristics of Synthetic fibres
22:50 Disadvantages of Synthetic fibres
23:50 Plastic – it’s Types and Characteristics
27:14 PVC and Bakelite – it’s Characteristics and Uses
31:08 Melamine and teflon
34:08 Types of plastic – Thermosetting and thermoplastic
36:04 Thermosetting Plastic and Uses
38:22 Structure of Thermosetting and Thermoplastic

📩Notes Download Link📩

https://drive.google.com/file/d/16jRO884XYCXjpGh-W-1PpX1Vj0BrHpM5/view?usp=drivesdk

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🔑 Tags in Hindi🔑
नवोदय विद्यालय प्रवेश परीक्षा कक्षा 9
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