Q31 / 160 · TS EAMCET 2020 (10 Sep Shift 1) · Chemistry

Which of the following statement is not true about interstitial complexes?

  • A
    Small atom like $\mathrm{C}, \mathrm{H}$ or $\mathrm{N}$ are trapped inside crystal lattice
  • B
    They are usually non-stoichiometric
  • C
    They generally retain metallic conductivity
  • Correct answer
    D
    They are chemically very active

Solution

Interstitial compounds are formed, when small atoms are trapped inside the crystal lattice of metals. (i) They are very hard and rigid. (ii) They have high melting point, which are higher than these of the pure metals. (iii) They show conductivity like the of the pure metals. (iv) They aquire chemical inertness.

Hence, the correct answer is option: 'D'.

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