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Polyethylene can be produced from calciu...

Polyethylene can be produced from calcium carbide according to the following sequence of reactions
`CaC_(2)+H_(2)orarr CaO+HC-=CH`
`nHC-=CH+nH_(2) rarr(-CH_(2)-CH_(2)-)_(n)`
The mass of polyethylene which can be produced from `40.0 kg ` of `CaC_(2)` is

A

6.75 kg

B

7.75 kg

C

8.75 kg

D

9.75 kg

Text Solution

Verified by Experts

The correct Answer is:
3
68 g `CaC_(2)` given 26 g `C_(2)H_(2)`
26n g `C_(2)H_(2)` will be given by 64n g `CaC_(2)` and it given 28n g polymer
`therefore ` 64n kg `CaC_(2)` given `to` 28n kg polymer
`therefore` 20 kg `CaC_(2)` gives `to (28n)/(64n)xx 20= 8.75 kg`
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