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-p-Block elements - I — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistry-p-Block elements - I1 Mark
MCQ
Which of the following statements about the interstitial compounds is incorrect?
  • A
    They are much harder than the pure metal.
  • B
    They have higher melting points than the pure metal.
  • C
    They retain metallic conductivity.
  • ✓
    They are chemically reactive.
✓

Answer

Correct option: D.
They are chemically reactive.
d
Interstitial compounds are obtained when small atoms like $H, B, C,N,$ etc, fit into the interstitial space of lattice metals.

These retain metallic conductivity. These resemble the parent metal in chemical properties (reactivity) but differ in physical properties like hardness, melting point, etc.

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