Transition Elements 311 C Questions

The attached file contains some questions for transition elements (311 C) course (for third year chemistry students)

[1] Chromium acetate dihydrate is ………………….

[2] At room temperature, Ti ……………

[3] ZrO₂ and HfO₂ are…………………………..

[4] Nb and Ta are………..

[5] Transition elements ions form complexes because they are………………..

[6] ScC₂ is…………………………..

[7] The density of vanadium hydride is ……………. that of the metal

[8] On heating with X₂, tungsten gives ………

[9] V²⁺ and V³⁺ are……