Amarnath Mishra, Geeta Mehta, Rajesh Mohan and, Deepti Lehri Solutions for Chapter: Synthetic Materials, Exercise 1: Exercises
Author:Amarnath Mishra, Geeta Mehta, Rajesh Mohan & Deepti Lehri
Amarnath Mishra Science Solutions for Exercise - Amarnath Mishra, Geeta Mehta, Rajesh Mohan and, Deepti Lehri Solutions for Chapter: Synthetic Materials, Exercise 1: Exercises
Attempt the practice questions on Chapter 5: Synthetic Materials, Exercise 1: Exercises with hints and solutions to strengthen your understanding. Basic Science for Class 8 solutions are prepared by Experienced Embibe Experts.
Questions from Amarnath Mishra, Geeta Mehta, Rajesh Mohan and, Deepti Lehri Solutions for Chapter: Synthetic Materials, Exercise 1: Exercises with Hints & Solutions
EASY
8th CBSE
IMPORTANT
_____fibres compete with wool.

EASY
8th CBSE
IMPORTANT
Polythene carry bags _____ drains and sewers.

EASY
8th CBSE
IMPORTANT
Plastics are generally _____ (biodegradable/ non-biodegradable) i.e., they are not environmentally broken down to simpler, harmless substances.

EASY
8th CBSE
IMPORTANT
On being burnt, plastics give _____ gases. (toxic / innocuous / safe)

EASY
8th CBSE
IMPORTANT
Nylon has _____ tensile strength than cotton. (lower / higher)

EASY
8th CBSE
IMPORTANT
On being heated, polyester and nylon _____ before they burn.

MEDIUM
8th CBSE
IMPORTANT
Which of the following is a bad conductor of electricity?

MEDIUM
8th CBSE
IMPORTANT
Match the columns A and B
(a) | Cellulose | (i) | Artificial wool |
(b) | Nylon | (ii) | Semisynthetic fibre |
(c) | Acrylics | (iii) | Carry bags |
(d) | Acetate rayon | (iv) | Parachutes |
(e) | Polythene | (vi) | Glucose |
