Repeat unit and classification from drawn monomers

14 questions on Repeat unit and classification from drawn monomers from the Polymers chapter: 0 NEET level, 5 JEE Main, 9 JEE Advanced. Each one opens with its answer and solution.

• The monomer shown undergoes chain-growth addition polymerisation (end groups drawn as H and CH3). Which of the structures shown is a short fragment of the polym... JEE Main level, drawn structure
• The two compounds shown react together to give a polymer used as a fibre. Which description of the polymerisation is correct? JEE Main level, drawn structure
• The two compounds shown are mixed (the diamine in aqueous base, the other in an organic solvent) and react at the interface. Which small molecule is eliminated ... JEE Main level, drawn structure
• The two compounds shown are heated with a catalyst (transesterification) to give a polyester, taking one terephthaloyl unit and one diol unit as the repeat unit... JEE Advanced level, drawn structure
• The compound shown is polymerised using a free radical initiator. Which statement about the polymerisation is correct? JEE Main level, drawn structure
• The compound shown has both an amino group and a carboxylic acid group. It is heated to bring about polymerisation. Select all correct statements. JEE Advanced level, drawn structure
• The two compounds shown are heated with methanal in the presence of a catalyst. Select all correct statements about the product. JEE Main level, drawn structure
• The two compounds shown condense through one amide link, with loss of one molecule of water. Which of the structures shown is the product fragment (one amide bo... JEE Advanced level, drawn structure
• The two monomers shown are copolymerised by free radical emulsion polymerisation. Which statement describes the product correctly? JEE Advanced level, drawn structure
• The compound shown is polymerised by free radical addition polymerisation (1,4-addition). Select all correct statements about the product. JEE Advanced level, drawn structure
• A short fragment of a polyamide chain (three repeat units, end groups shown) is drawn. It is a fibre. Which statement about the forces between neighbouring chai... JEE Advanced level, drawn structure
• A short fragment of a polymer chain (three repeat units, H at both ends) is drawn. It is made by 1,4-addition of three molecules of a diene. Using degree of uns... JEE Advanced level, drawn structure
• The two compounds shown react to give a polymer. Select all correct statements. JEE Advanced level, drawn structure
• The cyclic compound shown is heated with a small amount of water to bring about polymerisation. Select all correct statements. JEE Advanced level, drawn structure