MCQ
Which of the following statements are correct?
- ✓Hydrides of group 13 act as Lewis acids.
- BHydrides of group 14 are electron deficient hydrides.
- CHydrides of group 14 act as Lewis acids.
- DHydrides of group 15 act as Lewis bases.
✓
Answer
Correct option: A.
Hydrides of group 13 act as Lewis acids.
- Hydrides of group 13 act as Lewis acids.
- Hydrides of group 15 act as Lewis bases.
All elements of group 13 will form electron deficient compounds which acts as Lewis acids.
All elements of group 14 will form electron precise compounds.
Electron rich hydrides have excess electrons which are present as lone pairs.
Elements of group 15-17 form such compounds. $NH_3$ has one lone pair, $H_2O$ has two lone pairs and HF has three lone pairs, and so these compounds act as Lewis bases.
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