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Calculate the amount of polythene formed...

Calculate 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(Pd-BaSO_4)to CH_2=CH_2`
`nCH_2=CH_2 to underset"Polythene"((--CH_2-CH_2--)_n)`

A

28 g

B

6 g

C

9 g

D

64 g

Text Solution

Verified by Experts

The correct Answer is:
C
Molecular weight of `CaC_2`= 40+24 = 64
64 kg of `CaC_2` gives = 28 kg of ethene
20 kg of `CaC_2` gives `28/64xx20=(7xx20)/16=35/4`=8.75 kg
`approx` 9 kg polythene
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