Polyethylene is prepared from calcium carbide | vedclass

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(D) Step $1$: Calculate the molar mass of $CaC_2$ $(40 + 2 	imes 12 = 64 \ g/mol)$.Step $2$: From the stoichiometry,$1 \ mol$ of $CaC_2$ produces $1

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$28$

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(D) Step $1$: Calculate the molar mass of $CaC_2$ $(40 + 2 	imes 12 = 64 \ g/mol)$.Step $2$: From the stoichiometry,$1 \ mol$ of $CaC_2$ produces $1 \ mol$ of $C_2H_2$,which produces $1 \ mol$ of $C_2H_4$.Step $3$: $n \ mol$ of $C_2H_4$ produces $1 \ mol$ of polyethylene unit $(-CH_2-CH_2-)$ of molar mass $28 \ g/mol$.Step $4$: $64 \ kg$ of $CaC_2$ is $1000 \ mol$.Step $5$: Therefore,$1000 \ mol$ of $C_2H_4$ will produce $1000 \ mol$ of ethylene units in the polymer.Step $6$: Mass of polyethylene = $1000 \ mol 	imes 28 \ g/mol = 28000 \ g = 28 \ kg$.

Column-$I$	Column-$II$
$A$. Polyester of glycol and phthalic acid	$i$. Novolac
$B$. Copolymer of $1,3$-butadiene and styrene	$ii$. Glyptal
$C$. Phenol and formaldehyde resin	$iii$. Buna-$S$
$D$. Polyester of glycol and terephthalic acid	$iv$. Buna-$N$
$E$. Copolymer of $1,3$-butadiene and acrylonitrile	$v$. Dacron

List-$I$ (Chemicals)	List-$II$ (Use / Preparation / Constituent)
$(a)$ Alcoholic potassium hydroxide	$(i)$ Electrodes in batteries
$(b)$ $Pd / BaSO_4$	$(ii)$ Obtained by addition reaction
$(c)$ $BHC$ (Benzene hexachloride)	$(iii)$ Used for $\beta$-elimination reaction
$(d)$ Polyacetylene	$(iv)$ Lindlar's catalyst

List-$I$	List-$II$
$A$. $(CH_2-C(Cl)=CH-CH_2)_n$	$I$. Cross-linked network
$B$. Nylon-$6,6$	$II$. Elastomer
$C$. $HDP$	$III$. Fibre
$D$. Melamine-formaldehyde	$IV$. Ziegler-Natta catalyst

Polyethylene is prepared from calcium carbide as follows:
$CaC_2 + 2H_2O \to Ca(OH)_2 + C_2H_2$
$C_2H_2 + H_2 \to C_2H_4$
$nC_2H_4 \to (-CH_2-CH_2-)_n$
Calculate the amount of polyethylene produced from $64 \ kg$ of $CaC_2$. (in $kg$)

Similar Questions

Which of the following has cross-links?

Match the following:
List-$I$ List-$II$
$A$. $(CH_2-C(Cl)=CH-CH_2)_n$ $I$. Cross-linked network
$B$. Nylon-$6,6$ $II$. Elastomer
$C$. $HDP$ $III$. Fibre
$D$. Melamine-formaldehyde $IV$. Ziegler-Natta catalyst

Which of the following statements is correct for a spontaneous polymerization reaction?

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Polyethylene is prepared from calcium carbide as follows:$CaC_2 + 2H_2O \to Ca(OH)_2 + C_2H_2$$C_2H_2 + H_2 \to C_2H_4$$nC_2H_4 \to (-CH_2-CH_2-)_n$Calculate the amount of polyethylene produced from $64 \ kg$ of $CaC_2$. (in $kg$)