AP EAMCET · Chemistry · Hydrogen
Among the following the correct statements are
I. \(\mathrm{LiH}, \mathrm{BeH}_2\) and \(\mathrm{MgH}_2\) 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 \(\mathrm{CrH}\) The correct option is
- A I, III only
- B II, IV only
- C I, IV only
- D III, IV only
Answer & Solution
Correct Answer
(C) I, IV only
Step-by-step Solution
Detailed explanation
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 \(\mathrm{CH}_4, \mathrm{SiH}_4\), act as \(\mathrm{pH}\) - neutral species. Thus, statement III is incorrect.
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