CH3-CH3A A B AC Here- B and C are -

The correct option is A LDPE, HDPEProduct B and C are polyethene.The low density #160;polythene (LDP) #160;is obtained by the polymerisation #160;of ethe ...

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Standard XII

Chemistry

Oxidation States of Lanthanides

CH3-CH3A A B...

Question

$C H_{3} - C H_{3} P y r o l y s i s - ----- \to A$

$A 1000 - 2000 a t m, t r a c e s o f O_{2}, Δ - ----------------- \to C_{6} H_{5} - C O - O - O - C O - C_{6} H_{5} B$

$A Z i e g l e r - N a t t a C a t a l y s t - ------------- \to 6 - 7 a t m, Δ C$
Here, B and C are :

LDPE, HDPE

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HDPE, LDPE

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LDPE, LDPE

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HDPE, HDPE

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Solution

The correct option is A LDPE, HDPE
Product B and C are polyethene.
The low density polythene (LDP) is obtained by the polymerisation of ethene under high pressure of $1000$ to $2000$ atm at a temperature of $350$ K to $570$ K in the presence of traces of dioxygen or a peroxide initiator (catalyst).
The low density polythene (LDP) is obtained through the free radical addition and H-atom abstraction has highly branched structure.
The high density polyethene is formed when addition polymerisation of ethene takes place in a hydrocarbon solvent in the presence of a catalyst such as triethylaluminium and titanium tetrachloride (Ziegler-Natta catalyst) at a temperature of $333$ K to $343$ K and under a pressure of $6 - 7$ atm. High density polythene (HDP) thus, produced consists of linear molecules and has a high density due to close packing.

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Similar questions

Q. What makes HDPE have density and strength as compared to LDPE

Q. What makes HDPE have higher density and strength as compared to LDPE?

Q. Find out the order of stability between

(A) C H_{3} - C H_{2} - C | C O O H H - - C H - C H_{3}

(B) C H_{3} - C | C O O H H - C H_{2} - - C H - C H_{3}

(C) C | C O O H H_{2} - C H_{2} - C H_{2} - - C H - C H_{3}

\begin{matrix} C H_{3} | H & - & C | | H & - & C | C H_{3} \end{matrix} a l k a l i n e K M n O_{4} - --------- \to A

Which is true about this reaction?

Q. Which amongst the following is a positional isomer of

{CH}_{3} - {CH}_{2} - CH = {CH}_{3}

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CH3−CH3Pyrolysis−−−−−−→AA1000−2000atm,traces of O2,Δ−−−−−−−−−−−−−−−−−−→C6H5−CO−O−O−CO−C6H5BAZiegler−Natta Catalyst−−−−−−−−−−−−−−→6−7atm,ΔC Here, B and C are :

$C H_{3} - C H_{3} P y r o l y s i s - ----- \to A$

$A 1000 - 2000 a t m, t r a c e s o f O_{2}, Δ - ----------------- \to C_{6} H_{5} - C O - O - O - C O - C_{6} H_{5} B$

$A Z i e g l e r - N a t t a C a t a l y s t - ------------- \to 6 - 7 a t m, Δ C$
Here, B and C are :