Lewis acid among the following is
a) `CH_4`
b) `NH_3`
c) `BF_3`
d) `CO`

Which among the following is a Lewis acid?

Which among the following is a Lewis acid?

Which among the following is a Lewis acid?

Strongest and weakest acid among the following is CH_(3)-NO_(2) CH_(3)-CHO CH_(3)-F CH_(3)-CN

Which is a stronger Lewis acid in each of the following pairs? (a) Sn^(2+) or Sn^(4+) (b) BF_(3) , or BH_(3)

Give the decreasing order of acidic strength of the following : (a) CH_4 (b) H_2 O ( c) HF (d) NH_3 ( e) LiH (f) BeH_2 .

The water -soluble complex among the following is (a) [Ni(HDMG)_(2)] (b) [Co(NH_(3))_(3)CI_(3)] (c ) Ni(CO)_(4) [Ni(HDMG)_(2)]CI_(2) .

Odd electron molecule among the following is (A) ClO_2 (B) NO (C) NH_3 (D) Both A & B

Which of the following has larger bond angle in the following pairs ? (a)NH_(3),PH_(3)(b)BeF_(2),BF_(3)(c )H_(2)O,CO_(2)(d)H_(2)O,H_(2)S(e)C CL_(4),C_(2)H_(2) ?

Sort out the Lewis acids and Lewis bases among the following: Cl^(-) , BCl_3, SO_2 , OH^(-) , Fe^(3+) , SnCl_4,Ni , CH_3OH, NH_3?