Novolac is ............. .

  • A
    a linear condensation product of phenol and formaldehyde
  • B
    a cross-linked condensation product of urea and formaldehyde
  • C
    a cross-linked condensation product of phenol and formaldehyde
  • D
    a linear condensation product of urea and formaldehyde

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Similar Questions

In Buna-$S$,the symbol $Bu$ stands for

Match List-$I$ with List-$II$.
List-$I$ (Monomer Unit) List-$II$ (Polymer)
$(a)$ Caprolactum $(i)$ Natural rubber
$(b)$ $2-$Chloro$-1,3-$butadiene $(ii)$ Buna$-N$
$(c)$ Isoprene $(iii)$ Nylon$-6$
$(d)$ Acrylonitrile $(iv)$ Neoprene

Choose the correct answer from the options given below:

Match the following:
List-$I$List-$II$
$A$. Natural rubber$I$. Free radical polymerisation
$B$. $PVC$$II$. Side chain alternative arrangement
$C$. Terylene$III$. $Cis-polyisoprene$
$D$. Syndiotactic polymer$IV$. Condensation polymerisation

Which of the following polymers (trade name) is used to obtain paints?

Buna-$S$ is obtained from

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