MHTCET 18 Apr 2026 Shift 2 Paper

Concept:Low Density Polythene ($\mathrm{LDPE}$) is a flexible, tough, and chemically inert polymer used for making flexible products such as irrigation pipes.Explanation:$\mathrm{LDPE}$ (Low Density Polyethylene) is obtained by the polymerization of ethylene under high pressure.Its branched structure makes it soft, flexible, and less crystalline than High Density Polythene ($\mathrm{HDPE}$).Because of this flexibility and chemical inertness, $\mathrm{LDPE}$ is ideal for manufacturing flexible pipes used in irrigation.Option A: Buckets are generally made from rigid $\mathrm{HDPE}$, not $\mathrm{LDPE}$.Option C: Nonstick cookware is made from $\mathrm{Teflon}$ (polytetrafluoroethylene, $\mathrm{PTFE}$).Option D: Tyre cords are made from $\mathrm{nylon}$, which provides high tensile strength.Hence, the correct match for the use of $\mathrm{LDPE}$ is option B.Answer:Option B: Preparation of pipes for irrigation.