AP EAMCET · Chemistry · Chemical Bonding and Molecular Structure
Which among the following represents the correct order of variation of bond angles in the given molecules?
- A \(\mathrm{NH}_3>\mathrm{NF}_3>\mathrm{PCl}_3>\mathrm{BF}_3\)
- B \(\mathrm{BF}_3>\mathrm{PCl}_3>\mathrm{NH}_3>\mathrm{NF}_3\)
- C \(\mathrm{BF}_3>\mathrm{NH}_3>\mathrm{PCl}_3>\mathrm{NF}_3\)
- D \(\mathrm{BF}_3>\mathrm{NH}_3>\mathrm{NF}_3>\mathrm{PCl}_3\)
Answer & Solution
Correct Answer
(D) \(\mathrm{BF}_3>\mathrm{NH}_3>\mathrm{NF}_3>\mathrm{PCl}_3\)
Step-by-step Solution
Detailed explanation
Bond angle in \(\mathrm{BF}_3\left(120^{\circ}\right), \mathrm{NH}_3\left(107^{\circ}\right), \mathrm{NF}_3\left(102^{\circ}\right)\) and \(\mathrm{PCl}_3\left(100^{\circ}\right)\). \(\mathrm{BF}_3\) is trigonal planar, hence Hence, the correct option is (d).
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