Question

Which one is used for the formation of nylon-$6,6$ ?
A.Sulphurous acid
B.Adipic acid
C.Sulphur hexafluoride
D.Phthalic acid

Answer 1

Hint: This question gives the knowledge about the polymers. Simpler monomer units combine with each other to form polymers. Polymer is a Greek word which means “many parts”. Many polymers are present in our environment.

Complete answer:
Nylon-$6,6$ is a polymer made up by the combination of two monomer units. These two monomers are hexamethylenediamine and Adipic acid.
Therefore, Adipic acid is used for the formation of nylon-$6,6$.

Hence, option B is correct.

Additional information:
Polymers are the macromolecules which are formed by the combining of a number of simpler units known as monomers. Polymer is a Greek word which means “many parts”. Many polymers are present in our environment. Polymers can be naturally occurring or can be man-made. Polymers that are found in plants and animals naturally are known as natural polymers and the polymers that are man-made are known as synthetic polymers.
Uses of polymers are as follows:
$1$. Polypropene is a polymer which is used at a large scale in industries like aircraft, rope, toys, textiles and so forth.
$2$. Glyptal is very useful in making coatings, lacquers and paints.
$3$. Bakelite is a polymer which is useful in making toys, electrical switches, firearms, jewelry, insulators and kitchen products.
$4$. Polyvinyl chloride is useful for making sewage pipes, construction of windows and doors.

Note: Always remember that the polymers are the macromolecules which are formed by the combining of a number of simpler units known as monomers. Polymer is a Greek word which means “many parts”. Polymers can be naturally occurring or can be man-made.