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Dhruvan G from Indian School al Ghubra, Muscat
Subject :NSO    Class : Class 8

Which of the following is not correctly matched?

AThermoplastics - PVC and polystyrene
BPolycot - Polythene and cotton
CMelamine - Fire proof plastic
DRayon - Regenerated fibre


it is option d. Because polycot is polythene and cotton. Rayon is not a regenerated fibre

Ans 1:

Shreya Mahesh from Sri Sri Ravishankar Vidya Mandir, Bangalore
Class : Class 8
It is polyester and not polythene. Therefore B is the right answer. Rayon IS regenerated from wood pulp.

Ans 2:

Sampurna Mandal from DAV Public School Jagganath Talcher, Angul
Class : Class 8
Thanks for the answer

Ans 3:

Anvi Jain from School, City
Class : Class 10

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