AP EAMCET202316 May 2023Morning ShiftChemistryHydrogenActual
Among the following the correct statements are I. LiH , BeH ₂ and MgH ₂ are saline hydrides with significant covalent character II. Saline hydrides are volatile III. Electron - precise hydrides are Lewis bases IV. The formula for chromium hydride is CrH The correct option is
Options
- AI, III only
- BII, IV only
- CI, IV only
- DIII, IV only
Correct answer
C. I, IV only
Step-by-step solution
Saline hydrides are not volatile as the strong ionic bonds keep the constituent ions together. Thus, statement II is in correct. Electron-precise hydrides like CH ₄, SiH ₄ , act as pH - neutral species. Thus, statement III is incorrect.