EASY
Earn 100

Write two properties of nylon.

Important Questions on Substances in Daily Use

EASY
Why do we use synthetic fibres to make parachute and rain coat?
MEDIUM
You may break a cotton thread by pulling its two ends apart with your hands but not a thread made from nylon. Why?
HARD
Which of the following fabrics will you prefer to wear on a rainy day?
MEDIUM

Give examples which indicate that nylon fibres are very strong.

MEDIUM
How is rayon different from nylon in its composition?
MEDIUM
What is nylon? State the important properties of nylon.
MEDIUM

Which fibre is commonly used for making ropes?

MEDIUM
Correct the following statements by replacing the incorrect word(s).
Nylon turns to ash when it is heated.
HARD
Why should we not wear nylon clothes on a warm summer day?
EASY

Write the quadrants in which the following points lie:

-4,7

MEDIUM
Which properties of nylon make it an ideal material for making parachutes?
EASY
Parachutes are made from which fibre?
MEDIUM
Nylon and Rayon are man-made, or natural fibres? 
EASY
Give examples which indicate that nylon fibres are very strong.
MEDIUM
Give the important uses of nylon.
MEDIUM

What are the uses of nylon and rayon?

MEDIUM
Which of the following is not a forest product?