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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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Knowledge Check

  • Polythene can be produced from calcium carbide according to the following sequence of reactions. CaC_(2)+2H_(2)Orarr Ca(OH)_(2)+C_(2)H_(2), C_(2)H_(2)+H_(2)rarr C_(2)H_(4), nC_(2)H_(4)rarr(C_(2)H_(4))n The mass of polythene which can be produced from "20.0 kg of "CaC_(2) is :

    A
    8.75 kg
    B
    20 kg
    C
    16.5 kg
    D
    9.65 kg

  • H_(2)N - CH_(2) - CH_(2) - NH_(2) serves as

    A
    Monodentate ligand
    B
    Chelating ligand
    C
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    D
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  • Polyethene can be prepard by CaC_(2) by the following sequence of reactions . CaC_(2) + H_(2)O to CaO + C_(2)H_(2) C_(2)H_(2) + H_(2) to C_(2)H_(4) nC_(2)H_(4)to (C_(2)H_(4))_(n) " (Polythene)" The mass in kg of polythene that can be prepared by 20 kg CaC_(2) .

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    B
    8.75 kg
    C
    3.78 kg
    D
    10 kg

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