Chemistry - Polymers Question with Solution | TestHub

ChemistryPolymersGeneralEasy2 minPYQ_2020
ChemistryEasynumerical

Polyethylene is obtained from calcium carbide.

CaC2+2H2OCaOH2+C2H2

C2H2+H2C2H4

nC2H4-CH2-CH2-n

Therefore, the amount of polyethylene (in kg) obtained for 64 kgCaC2is

Answer:
28.00
Solution:

Moles ofCaC2=64×103641×103

So from the balanced chemical equation, moles ofC2H2=moles ofC2H4

=moles ofCaC2=1×103

So moles of polythene=1n×1×103

So weight of polythene=1n×1×1×28nkg

= 28 kg

Stream:NTA_ABHYASSubject:ChemistryTopic:PolymersSubtopic:General
2mℹ️ Source: PYQ_2020

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