How many of the following have back bonding N(SiH3)3; N(CH3)3; OF2; BF3; (SiH3)2O ; F2B-NH2; BBr3; (CH3)2O

Which of the following is the correct order of bond angle in H_2S , NH_3 , BF_3 and SiH_4 ?

Which of the following is correct statement regarding N(CH_(3))_(3) and N(SiH_(3))_(3) ?

Which out of the following does not react with acetyl chloride? (i) CH_3 NH_2 (ii) (CH_3)_2NH (iii) (CH_3)_3N

Which of the following pairs is expected to exhibit H-bonding (a) CH_(3)CH_(2)OH and CH_(3)OCH_(3) (b) CH_(3)NH_(2) and CH_(3)SH (c ) CH_(3)OH and (CH_(3))_(3)N .

Which of the following is an electrophile ? NH_3 AlCl_3 OH^(-) CH_3-O-CH_3

"hybridization of central atom does not always change due to back bonding". This statement is valid for which of the following compounds? (i) CCl_(3)^(-) (ii) CCl_(2) (iii) O(SiH_(3))_(2) (iv) N(SiH_(3))_(3)

Arrange the following in order of decreasing bond angles (i) CH_(4), NH_(3), H_(2)O, BF_(3), C_(2)H_(2)" "(ii) NH_(3), NH_(2)^(-), NH_(4)^(+)

Arrange the following in the increasing order of their basic strength : (i) (CH_3)_3 N (ii) CH_3 NH_2 (iii) NH_3

How many of the following compounds are non-polar? NH_(3),NF_(3),BeH_(2)(g),CO_(2),H_(2)O,HI,H_(2),BF_(3),CH_(4),CHCl_(3),CH_(2)Cl_(2)" " CCl_(4)

Arrange the following in the order of decreasing basic character : (1) CH_3NH_2 (2) (CH_3)_2NH (3) NH_3