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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

  1. AI, III only
  2. BII, IV only
  3. CI, IV only
  4. 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.

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