Multiple choice

The carbides of the group 4, 5 and 6 transition metals except chromium are known as

  1. methanides

  2. molecular carbides

  3. intermediate transition metal carbides

  4. interstitial carbides
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D Correct answer
Explanation

The carbides of the group 4, 5 and 6 transition metals (with the exception of chromium) are often described as interstitial compounds.These carbides have metallic properties and are refractory. Some exhibit a range of stoichiometries, e.g. titanium carbide, TiC. Titanium carbide and tungsten carbide are important industrially and are used to coat metals in cutting tools.

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