Answer 2666

Differentiate between natural fibres and synthetic /artificial/man made fibres.

5 year ago
Nishu Sharma
Nishu Sharma

What do you mean by burning test? Write burning test of cotton and nylon.

5 year ago
Nishu Sharma
Nishu Sharma

How does pesticides and weedicides create pollution? What are the main things which get polluted by these chemicals?

5 year ago
Nishu Sharma
Nishu Sharma

How does the name Nylon come ? What are the chemical which are used to make nylon? 

5 year ago
Nishu Sharma
Nishu Sharma

What is the difference between permanent hardness of water and temporary hardness of water? 

5 year ago
Nishu Sharma
Nishu Sharma

What do you mean by hard water ? Why can't we use hard water in our daily life? 

5 year ago
Nishu Sharma
Nishu Sharma
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