1.

The correct order of bond angles (smallest first) in \[{{H}_{2}}S,N{{H}_{3}},B{{F}_{3}}\]and \[Si{{H}_{4}}\]is          [AIEEE 2004]

A.                 \[{{H}_{2}}S<N{{H}_{3}}<Si{{H}_{4}}<B{{F}_{3}}\]
B.                 \[N{{H}_{3}}<{{H}_{2}}S<Si{{H}_{4}}<B{{F}_{3}}\]
C.                 \[{{H}_{2}}S<Si{{H}_{4}}<N{{H}_{3}}<B{{F}_{3}}\]
D.                 \[{{H}_{2}}S<N{{H}_{3}}<B{{F}_{3}}<Si{{H}_{4}}\]
Answer» D.                 \[{{H}_{2}}S<N{{H}_{3}}<B{{F}_{3}}<Si{{H}_{4}}\]


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