The monomer used in the preparation of Teflon is ____________.
Teflon, a well-known polymer, is produced through the polymerization process of tetrafluoroethene \( (C_2F_4) \).
This reaction can be described by: \[ n \, F_2C=CF_2 \quad \xrightarrow{\text{polymerization}} \quad [ -CF_2-CF_2]_n \]
Therefore, the correct answer is (d) tetrafluoroethene.
Write the structure and name of the monomer of Natural rubber
Write the structure and name of the monomer of Nylon-6.
The slope of the tangent to the curve \( x = \sin\theta \) and \( y = \cos 2\theta \) at \( \theta = \frac{\pi}{6} \) is ___________.
Solve the following L.P.P. by graphical method:
Maximize:
\[ z = 10x + 25y. \] Subject to: \[ 0 \leq x \leq 3, \quad 0 \leq y \leq 3, \quad x + y \leq 5. \]