Which of the following has cross-links?

  • A
    Vulcanised rubber
  • B
    Nylon
  • C
    Phenol-formaldehyde resins
  • D
    Both $(A)$ and $(C)$ are correct

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Similar Questions

Which of the following statement$(s)$ is/are incorrect?
$(a)$ $PHBV$ and $Nylon-2-nylon-6$ are biodegradable polymers.
$(b)$ Bakelite is a polymer of urea and formaldehyde.
$(c)$ Novolac is a linear product of phenol and formaldehyde and is used in paints.
$(d)$ Terylene and $Nylon-6,6$ are examples of thermoplastic polymers.
$(e)$ Teflon is an addition polymer.

Match List-$I$ with List-$II$.
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

Choose the most appropriate match.

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 incorrect?

Match the chemical substances in Column-$I$ with the type of polymers/type of bonds in Column-$II$.
Column-$I$ Column-$II$
$A$. Cellulose $p$. Natural polymer
$B$. Nylon-$6,6$ $q$. Synthetic polymer
$C$. Protein $r$. Amide linkage
$D$. Sucrose $s$. Glycoside linkage

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