The correct increasing order for bond angles among \( \text{BF}_3, \, \text{PF}_3, \, \text{and} \, \text{CF}_3 \) is:
Amongst the following, the number of species having the linear shape is $XeF _2, I _3^{+}, C _3 O _2, I _3^{-}, CO _2, SO _2, BeCl _2 \text { and } BCl _2^{\ominus}$