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AP EAMCET20227 Jul 2022Morning ShiftChemistryd and f Block ElementsActual

In long form of periodic table, the d -block element which forms interstitial hydride is

Options

  1. AMo
  2. BW
  3. CNi
  4. DCr

Correct answer

D. Cr

Step-by-step solution

Generally, group 6, 7, 8 and 9 has low affinity towards hydrogen when they are in their normal oxidation states. This prevents the formation of metal hydrides. But chromium ( Cr ) is an exception. The Cr absorb hydrogen in almost 1: 1 stoichiometric quantity. During the formation of such compounds hydrogen atoms occupy the interstitial sites present in crystals of metals.

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