Search any question & find its solution
Question:
Answered & Verified by Expert
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
Options:
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
Solution:
1582 Upvotes
Verified Answer
The correct answer is:
I, IV only
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.
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.
Looking for more such questions to practice?
Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.