Styrene (polystyrene) resins in building products and consumer goods: identify the correct set of characteristics and sources. Choose the most comprehensive correct option.

Difficulty: Medium

Correct Answer: All the above

Explanation:


Introduction / Context:
Styrenic polymers (e.g., polystyrene, high-impact polystyrene, ABS blends) are widely used in interiors, appliances, and packaging. This question checks your understanding of their source, typical properties, and general performance in everyday chemical environments.


Given Data / Assumptions:

  • “Styrene resin” here refers to polystyrene-based materials.
  • Comparisons are with common alternatives like metals and glass.
  • We are discussing household/architectural contexts, not extreme chemicals.


Concept / Approach:

Styrene is derived industrially from ethylbenzene (benzene + ethylene from petroleum). Polystyrene has low density, enabling light components. Optical grades are transparent and can transmit visible and some UV (though yellowing/UV degradation can occur without stabilizers). For domestic use, many styrenics resist water, salts, and mild acids/bases, making them suitable for certain utensils and containers, while they are not resistant to aromatic solvents or strong chemicals.


Step-by-Step Solution:

Source: petroleum route via ethylbenzene → styrene → polymerization.Property: low density → lightweight parts.Optics: clear polystyrene transmits visible and some UV; additives affect stability.Use: many household chemicals do not attack styrenics; avoid strong solvents.


Verification / Alternative check:

Material datasheets show density ~1.04–1.06 g/cm^3, optical clarity, and compatibility charts for typical reagents.


Why Other Options Are Wrong:

Each individual statement is true; picking fewer than all ignores other correct attributes. Caveat: resistance is not universal—context matters.


Common Pitfalls:

Assuming universal chemical inertness; polystyrene is attacked by hydrocarbons like toluene and gasoline.


Final Answer:

All the above

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