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Subject: Science, asked on 6/7/17

synthetic fibres have so many advantages still we do not wear clothes made from purely synthetic fibres but a mixture of synthetic and natural fibres. why?

Subject: Science, asked on 6/7/17

burning cotton smells like burning paper, whereas burning wool smells like burning hair. why?

Subject: Science, asked on 6/7/17

which property of plastics makes them so useful but also makes them an environmental hazard?

Subject: Science, asked on 4/7/17

State the composition of polyster

Subject: Science, asked on 28/6/17

DOES WOOL HAS CELLULOSE ?

Subject: Science, asked on 28/6/17

↵WHAT IS CHEMICAL FORMULA OF
  • P.V.C
  • P.E.T
  • TEFLON 
  • POLYTHENE 
  • BAKELITE
  • MELAMINE 
  • POLYURATHENE
  • ​POLYACRILONITRILE

Subject: Science, asked on 27/6/17

A NON MET​​AL WHICH IS A GOOD CONDUCTOR OF ELECTRICITY.

Subject: Science, asked on 27/6/17

 A SYNTHETIC FIBRE WHICH IS ALSO KNOWN AS ​ARTIFICAL SILK.
 

Subject: Science, asked on 27/6/17

Devise an activity to show that organic waste is biodegradable while plastic is not?
Write in words no diagram

Subject: Science, asked on 27/6/17

"Say no to  plastics"is an campaign.Coin few more slogans of this kind?

Subject: Science, asked on 25/6/17

What are the uses of nylon and polyester

Subject: Science, asked on 23/6/17

In polyester,
The monomer is ester..
So what is the role of PET??

In polyester,
The monomer is ester..
The polymer is polyester??
1 polymer is 1 strand of fibre??
1 polymer of polyester is 1 strand of polyester??


Eg:
1000000 esters combined together to form 1 pilymer of polyester??
1000000 polyester( polymer ) form a polyester fibre
Is it like that

(Live teacher 2 please answer)
Experts and friebds please answer

Subject: Science, asked on 23/6/17

Is polyester is made up of ester group, what is the role of PET????

Is PET is a plastic material or a compound???


Using PET how we make clothes???

Polyester is a fibre or polymer???
Or both??

Subject: Science, asked on 23/6/17

WHAT IS MEAN BYORLON

Subject: Science, asked on 20/6/17

Which plastic is used for making
a. making uniforms of fireman
b. give an stick coating an frying
c. making handles of frying pan.
d. making flexible water bottles

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