Question:

Which one of the following metals forms interstitial hydride easily?

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Interstitial metallic hydrides are formed by d-block metals of groups 3-6 (and 10-12 partially); groups 7, 8 and 9 form none (hydride gap).
Updated On: Nov 4, 2026
  • Cr
  • Fe
  • Mn
  • Co
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The Correct Option is A

Solution and Explanation

Metallic (interstitial) hydrides are formed by many d- and f-block metals, but the elements of groups 7, 8 and 9 (Mn, Fe, Co, ...) do not form hydrides. This region is called the hydride gap.
Chromium (group 6) is the only one among the options that forms an interstitial hydride (CrH).
Answer: (1) Cr
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