Question

Which of the following is the example of interstitial or non-stoichiometric hydrides?

• A. $LaH _{2.87}, YbH _{2.55}$
• B. $TiH _{1.5-1.8}, ZrH _{1.3-1.75}$
• C. $VH _{0.56}, NiH _{0.6-0.7}, PdH _{0.6-0.8}$
• D. All of the above

Answer 1

Answer: (D)

In non-stoichiometric hydrides, hydrogen occupies interstices in the metal lattice. These hydrides are also termed as interstitial hydrides. These include examples given in the options.