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Polymers are :
Polymer (E) is:
Polymer (D) is:
Polymer (G) is:
With reference to the polymer named by you: (1) Write the compounds from which it is prepared. (2) Give the physical property of the cross-linked synthetic polymer.
Name the sub-groups into which polymers are classified on the basis of magnitude of intermolecular forces.
Which one of the following polymers may be classified as step growth polymer ?
What is biodegradable polymers? Give the names of two commercial bio-degradable polymers.
Phenol and fomaldehyde undergo condensation to give a polymar (A) which on heating with formaldehyde gives a thermosetting polymer (B) Name the polymers. Write the reaction involved in the formation of (A) what is the structural difference between two polymers?
Answer the following: (i) What is the common name of the polymer obtained by the polymerization of caprolactam ? Is it an addition polymer or a condensation polymer ? (ii) Name the two organic compounds which have the same molecular formula C_2H_6O . Will they react with PClg ? If they react what are the products formed ?
JEE MAINS PREVIOUS YEAR ENGLISH-JEE MAINS-QUESTION
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