Polyamides

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Assertion (A) Polyamides are best used fas fibres because of high tensile strength. Reason (R ) Strong intermolecular foces (like hydrogen bonding within polyamides) lead to close packing of chains and increase the crystalline character hence , provide high tensile strength to polymers

Polyamide is

A polyamide synthetic polymer prepared by prolonged heating of caprolactum is:

The condensation polymer are those which gives out some simple molecules like H_(2)O in course of reaction. Mostly in this reaction functional group changes. Polyamide is

Protein are nitrogeneous organic compound having very high molecular mass. They are polyamides formed from alpha -amino acid. The bond formed between two amino acid is called peptide bond -underset(O) underset(||)C-NH- . The product obtainded by this peptide bond formation are called peptide and they may be divided as di, tri ,tetra, penta peptide. The given structure of amino acid will exist at which pH?

Protein are nitrogeneous organic compound having very high molecular mass. They are polyamides formed from alpha -amino acid. The bond formed between two amino acid is called peptide bond -underset(O) underset(||)C-NH- . The product obtainded by this peptide bond formation are called peptide and they may be divided as di, tri ,tetra, penta peptide. Consider following statements concerning protein 1. All amino acids which are constituents of proteins of alpha -amino acid. 2. alpha -amino acids are all optically active and have L-configuration 3. An especially favourable conformation for the peptide linkage in protein is the alpha -helix arrangement. 4. alpha -amino acids are connected by ester linkage. Which of the following statement are correct?