1.

Arrange the group 15 hydrides in the increasing order of H-M-H bond angle.

A. \[Sb{{H}_{3}}<As{{H}_{3}}<P{{H}_{3}}<N{{H}_{3}}\]
B. \[N{{H}_{3}}<P{{H}_{3}}<As{{H}_{3}}<Sb{{H}_{3}}\]
C. \[N{{H}_{3}}<Sb{{H}_{3}}<As{{H}_{3}}<P{{H}_{3}}\]
D. \[N{{H}_{3}}<P{{H}_{3}}<Sb{{H}_{3}}<As{{H}_{3}}\]
Answer» B. \[N{{H}_{3}}<P{{H}_{3}}<As{{H}_{3}}<Sb{{H}_{3}}\]


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