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The d & f Block Elements — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryThe d & f Block Elements1 Mark
MCQ
Many Lanthanoid elements are used to prepare:
  • A
    Ceramic materials.
  • B
    Water softener.
  • ✓
    Superconducting materials.
  • D
    Enzyme catalysts.
✓

Answer

Correct option: C.
Superconducting materials.
Many Lanthanoid elements are used to prepare superconducting materials.
Examples include Lanthanum sesquicarbide superconductor $\mathrm{La}_2 \mathrm{C}_3​.$ Gadolinium at very low temperatures becomes highly magnetic and may function as a superconductor.

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