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Question: Answered & Verified by Expert
Among the following, the correctly matched pair is
ChemistryHydrogenAP EAMCETAP EAMCET 2023 (15 May Shift 2)
Options:
  • A electron deficient hydride $-\mathrm{SiH}_4$
  • B saline hydride - $\mathrm{CrH}$
  • C electron precise hydride - HF
  • D electron rich hydride $-\mathrm{NH}_3$
Solution:
1206 Upvotes Verified Answer
The correct answer is: electron rich hydride $-\mathrm{NH}_3$
$\mathrm{NH}_3$ is an electron-rich hydride as $\mathrm{N}$-atom belongs to group - 15 and uses three of its valence electrons to make three $\mathrm{N}-\mathrm{H}$ bonds and the remaining two electrons form a lone pair.

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