The phenol formaldehyde resins are formed by polymerisation of phenol ans formaldehyde by

Options :
  1. addition polymerisation
  2. condensation polymerisation
  3. both 1 and 2
  4. none of these
Answer and Explanation :-

Answer: Option 3


Sorry there is no explanation for this answer. Please help others by posting your response below

How do you rate this queston?  Very Easy  Easy  Average  Above Average  Tough

Previous Question : Natural rubber is a polymer of

Next Question : Shellac secreted by Lac insects is

Click here for online test on Polymers


 (Getemail alerts when others member replies)

To recognize our bias toward error should teach us modesty and reflection, and to forgive it should help us avoid the inhumanity of thinking we ourselves are not as fallible as those who, in any instance, seem most at fault. Science can give us knowledge, but it cannot give us wisdom. Nor can religion, until it puts aside nonsense and distraction and becomes itself again.
-Marilynne Robinson