Qaysi murakkab modda tarkibidagi barcha elementlar allotropik shakl o'zgarishlarga ega?

  1. PCl₃
  2. K₂O
  3. CS₂
  4. NaF

📝 Detailed explanation

Allotropik shakl o'zgarishlariga ega elementlar: C (grafit, olmos, fulleren), S (rombik, monoklin, plastik), P (oq, qizil, qora), O (O₂, O₃) va boshqalar.
Ammo K, Na, F, Cl uchun allotropiya yo'q (yoki keng e'tirof etilmaydi).
PCl₃: P bor, lekin Cl da allotropiya yo'q.
K₂O: K va O — K da allotropiya yo'q.
CS₂: C va S — ikkalasi ham allotropiyaga ega.
NaF: Na va F — ikkalasida ham yo'q.
Javob: CS₂.
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