The increasing order of bond dissociation energies of C - C, C - H and H - H bonds is
H - H < C - H < C - C
C - C < C - H < H - H
H - H < C - C < C - H
C - H < H - H < C - C
H - H bond energy is the highest due to s-s overlapping (exceptional case)
The correct order of bond angles (smallest first) in H2S, NH3, BF3 and SiH4 is-