IMAT 2017 Q51 [Features of Molecules]

Which option correctly describes the following features of a silane (silicon tetrahydride) molecule?

  • number of bonding pairs (bp) of electrons

  • number of lone/non-bonding pairs (lp) in the valence shell of the silicon atom

  • bond angle

[Atomic number: Si = 14; H = 1]

A. 3 bp; 1 lp; 107°
B. 3 bp; 1 lp; 109.5°
C. 4 bp; 0 lp; 109.5°
D. 4 bp; 2 lp; 90°
E. 4 bp; 0 lp; 90°