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What would be the amount of polythene fo...

What would be the amount of polythene formed from 20 kg of calcium carbide from the reactions given below?
`CaC_2 + 2H_2O to Ca(OH)_2 + C_2H_2`
`HC-=CH+ H_2 overset(Pb-BaSO_4)to CH_2=CH_2`
`nCH_2 = CH_2 to underset("Polythene ")(--CH_2-CH_2 --)_n`

A

28g

B

6g

C

9kg

D

64kg

Text Solution

Verified by Experts

The correct Answer is:
C
Molecular weight of `CaC_2=40 + 24=64`
64 kg of `CaC_2` gives , 24 + 4 = 28 kg of ethene
20 kg of `CaC_2` give , `(28)/(64) xx 20 =( 7 xx 20)/(16) = (35)/(4) = 8.75 kg `
=9 kg polythene
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