All Courses
Get the App Signup / Login
Sign in Open App
Class 7 Exam  >  Class 7 Notes  >  Advance Learner Course: Science Class 7  >  MCQ - Synthetic Fibers And Plastics

MCQ - Synthetic Fibers And Plastics | Advance Learner Course: Science Class 7 PDF Download

Q1. Fibre obtained by chemical treatment of wood pulp is called ___________.
(a) Natural silk
(b) Rayon
(c) Nylon
(d) Polyester

Correct Answer is Option (b)

  • Natural Silk: The protein fibre of silk is composed mainly of fibroin and is produced by certain insect larvae to form cocoons.
  • Rayon: Rayon is a manufactured regenerated cellulose fibre. It is made from purified cellulose, primarily from wood pulp, which is chemically converted into a soluble compound.
  • Nylon: Nylon is a strong, light synthetic fibre. Nylon thread is made from the polymerization of an amine and an acid chloride.
  • Polyester: Polyester is a synthetic polymer made of purified terephthalic acid or its dimethyl ester dimethyl terephthalate and mono ethylene glycol.

MCQ - Synthetic Fibers And Plastics | Advance Learner Course: Science Class 7

Rayon Fabric


Q2. Nylon is obtained by __________.
(a) Treating wood pulp
(b) Solidifying water
(c) Mixing coal, air and water
(d) Mixing chemicals

Correct Answer is Option (c)
  • Nylon was first commercially synthesized fibre. 
  • The production of nylon was started almost simultaneously in New York and London, thus it got its name (NY for New York and Lon for London) as nylon. 
  • Nylon is synthesized from coal, water and air. Fibre of nylon is very strong and it also resembles silk.

Q3. _____________ is stronger than steel wire.        
(a) Cotton fibre
(b) Silk thread
(c) Plastic thread
(d) Nylon fibre
Correct Answer is Option (d)
  • Steel is an alloy.
  • Nylon is a polymer (synthetic fibre). It is a polyamide. The amide linkage between the monomers makes nylon fibres very strong.
  • Hence, Nylon wire is stronger than steel wire.

Q4. ________ is polyester used for making bottles, utensils, films.    
(a) Leather
(b) Nylon
(c) PET
(d) Plastic
Correct Answer is Option (c)
  • PET (polyethylene terephthalate) is a very familiar form of polyester. 
  • It is used for making bottles, utensils, films, wires and many other useful products.
Q5. Polyester is repeating units of _______.        
(a) Ether
(b) Beads
(c) Carbon
(d) Ester
Correct Answer is Option (d)
  • Polyester is a man-made or synthetic fibre made up of repeating units of a chemical substance called esters. 
  • Esters are sweet smelling compounds, which are primarily made of carbon, hydrogen, and oxygen.

Q6. _______ is a synthetic fibre used for making woollen clothes.        
(a) Acrylic
(b) Polyester
(c) Fibre
(d) Cotton
Correct Answer is Option (a)
  • Acrylic is known as artificial wool or synthetic wool because it resembles wool. 
  • Acrylic is cheaper than natural wool and can be dyed in various colour. 
  • This makes acrylic is very popular among other fabrics.

Q7. You must not wear synthetic fibres while working with fire because _______.
(a) They make you feel cold and so you may get a frost-bite
(b) They are lustrous and so they shine under the flame
(c) They melt on heating and stick to your body when they catch fire
(d) None of the above
Correct Answer is Option (c)
  • They melt on heating and stick to our body when catching fire and causes more harm. 
  • We must prefer cotton clothes while working with fire because it does not melt and keep us safe.  
  • Cotton fibres are soft and comfortable. It has good absorbency and it soaks oil splatter. It does not melt on heating and thus causes less harm.

Q8. Synthetic fibres are made using ______ as raw materials.        
(a) Woolen products
(b) Polymers
(c) Cotton
(d) Petrochemicals
Correct Answer is Option (d)
Synthetic fibres are synthesised from raw material called petrochemicals.

Q9. _________ is used commonly for making parachute ropes.        
(a) Polythene
(b) Polyester
(c) Nylon
(d) Silk
Correct Answer is Option (c)
Nylon fibres are very strong so they are used for making parachutes and ropes for rock-climbing.
Q10. ___________ is a popular polyester.        
(a) Plastic
(b) Polythene
(c) Rayon
(d) Terelyne
Correct Answer is Option (d)
  • Terylene is a popular trademark of synthetic polyester fibre.
  • The fabric is based on terephthalic acid, characterized by lightness and crease resistance and used for clothing, sheets, ropes, sails, etc.
The document MCQ - Synthetic Fibers And Plastics | Advance Learner Course: Science Class 7 is a part of the Class 7 Course Advance Learner Course: Science Class 7.
All you need of Class 7 at this link: Class 7
18 videos|34 docs|19 tests
Join Course for Free

Top Courses for Class 7

FAQs on MCQ - Synthetic Fibers And Plastics - Advance Learner Course: Science Class 7

1. What are synthetic fibers?
Ans. Synthetic fibers are man-made fibers that are produced through chemical processes. These fibers are made of polymers and are highly durable, strong, and resistant to wear and tear. Some examples of synthetic fibers are nylon, polyester, and acrylic.
2. What are plastics?
Ans. Plastics are a group of synthetic materials that are made from organic polymers. These materials can be molded into various shapes and forms and are highly durable, lightweight, and resistant to corrosion. Some examples of plastics are polyethylene, polypropylene, and polystyrene.
3. What are the advantages of using synthetic fibers and plastics?
Ans. The advantages of using synthetic fibers and plastics are their durability, strength, and resistance to wear and tear. They can be easily molded into various shapes and forms and are lightweight, making them ideal for use in a variety of applications. They are also resistant to corrosion and can withstand harsh environmental conditions.
4. What are the disadvantages of using synthetic fibers and plastics?
Ans. The disadvantages of using synthetic fibers and plastics are their non-biodegradable nature, which means they do not decompose easily and can harm the environment. They are also highly flammable and can release toxic fumes when burned. In addition, they are not as breathable as natural fibers and can cause skin irritation and other health problems.
5. How can we reduce the negative impact of synthetic fibers and plastics on the environment?
Ans. We can reduce the negative impact of synthetic fibers and plastics on the environment by recycling them and using them in other applications. We can also reduce our use of these materials by using more natural and sustainable materials. Additionally, we can dispose of these materials properly and avoid burning them, which can release toxic fumes into the air.
Related Exams
About this Document
50.2K Views
4.86/5 Rating
Nov 21, 2024 Last updated
Document Description: MCQ - Synthetic Fibers And Plastics for Class 7 2024 is part of Advance Learner Course: Science Class 7 preparation. The notes and questions for MCQ - Synthetic Fibers And Plastics have been prepared according to the Class 7 exam syllabus. Information about MCQ - Synthetic Fibers And Plastics covers topics like and MCQ - Synthetic Fibers And Plastics Example, for Class 7 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for MCQ - Synthetic Fibers And Plastics.
Introduction of MCQ - Synthetic Fibers And Plastics in English is available as part of our Advance Learner Course: Science Class 7 for Class 7 & MCQ - Synthetic Fibers And Plastics in Hindi for Advance Learner Course: Science Class 7 course. Download more important topics related with notes, lectures and mock test series for Class 7 Exam by signing up for free. Class 7: MCQ - Synthetic Fibers And Plastics | Advance Learner Course: Science Class 7
Description
Full syllabus notes, lecture & questions for MCQ - Synthetic Fibers And Plastics | Advance Learner Course: Science Class 7 - Class 7 | Plus excerises question with solution to help you revise complete syllabus for Advance Learner Course: Science Class 7 | Best notes, free PDF download
Information about MCQ - Synthetic Fibers And Plastics
In this doc you can find the meaning of MCQ - Synthetic Fibers And Plastics defined & explained in the simplest way possible. Besides explaining types of MCQ - Synthetic Fibers And Plastics theory, EduRev gives you an ample number of questions to practice MCQ - Synthetic Fibers And Plastics tests, examples and also practice Class 7 tests
18 videos|34 docs|19 tests
Join Course for Free
Download as PDF
Explore Courses for Class 7 exam

Top Courses for Class 7

Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev
Related Searches

Viva Questions

,

mock tests for examination

,

past year papers

,

pdf

,

Extra Questions

,

MCQ - Synthetic Fibers And Plastics | Advance Learner Course: Science Class 7

,

Semester Notes

,

ppt

,

Objective type Questions

,

Free

,

study material

,

practice quizzes

,

Exam

,

shortcuts and tricks

,

Sample Paper

,

MCQ - Synthetic Fibers And Plastics | Advance Learner Course: Science Class 7

,

Previous Year Questions with Solutions

,

MCQ - Synthetic Fibers And Plastics | Advance Learner Course: Science Class 7

,

Important questions

,

Summary

,

video lectures

,

MCQs

;
Additional Information about MCQ - Synthetic Fibers And Plastics for Class 7 Preparation

MCQ - Synthetic Fibers And Plastics Free PDF Download

The MCQ - Synthetic Fibers And Plastics is an invaluable resource that delves deep into the core of the Class 7 exam. These study notes are curated by experts and cover all the essential topics and concepts, making your preparation more efficient and effective. With the help of these notes, you can grasp complex subjects quickly, revise important points easily, and reinforce your understanding of key concepts. The study notes are presented in a concise and easy-to-understand manner, allowing you to optimize your learning process. Whether you're looking for best-recommended books, sample papers, study material, or toppers' notes, this PDF has got you covered. Download the MCQ - Synthetic Fibers And Plastics now and kickstart your journey towards success in the Class 7 exam.

Importance of MCQ - Synthetic Fibers And Plastics

The importance of MCQ - Synthetic Fibers And Plastics cannot be overstated, especially for Class 7 aspirants. This document holds the key to success in the Class 7 exam. It offers a detailed understanding of the concept, providing invaluable insights into the topic. By knowing the concepts well in advance, students can plan their preparation effectively. Utilize this indispensable guide for a well-rounded preparation and achieve your desired results.

MCQ - Synthetic Fibers And Plastics Notes

MCQ - Synthetic Fibers And Plastics Notes offer in-depth insights into the specific topic to help you master it with ease. This comprehensive document covers all aspects related to MCQ - Synthetic Fibers And Plastics. It includes detailed information about the exam syllabus, recommended books, and study materials for a well-rounded preparation. Practice papers and question papers enable you to assess your progress effectively. Additionally, the paper analysis provides valuable tips for tackling the exam strategically. Access to Toppers' notes gives you an edge in understanding complex concepts. Whether you're a beginner or aiming for advanced proficiency, MCQ - Synthetic Fibers And Plastics Notes on EduRev are your ultimate resource for success.

MCQ - Synthetic Fibers And Plastics Class 7 Questions

The "MCQ - Synthetic Fibers And Plastics Class 7 Questions" guide is a valuable resource for all aspiring students preparing for the Class 7 exam. It focuses on providing a wide range of practice questions to help students gauge their understanding of the exam topics. These questions cover the entire syllabus, ensuring comprehensive preparation. The guide includes previous years' question papers for students to familiarize themselves with the exam's format and difficulty level. Additionally, it offers subject-specific question banks, allowing students to focus on weak areas and improve their performance.

Study MCQ - Synthetic Fibers And Plastics on the App

Students of Class 7 can study MCQ - Synthetic Fibers And Plastics alongwith tests & analysis from the EduRev app, which will help them while preparing for their exam. Apart from the MCQ - Synthetic Fibers And Plastics, 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 MCQ - Synthetic Fibers And Plastics is prepared as per the latest Class 7 syllabus.
© EduRev
Education Revolution
Follow Us
Signup on EduRev and stay on top of your study goals
10M+ students crushing their study goals daily