Find the number of chemical species, in which `2 p pi -3 d pi` back bond is present
`B(OH)_(3), N(SiH_(3))_(3),P(CH_(3))_(3),N(GeH_(3))_(3),BeCl_(2),O(SiH_(3))_(2),O Cl_(2),BCl_(3)`

Find out the total number of compound which have p_(pi)-d_(pi) types of back bonding BF_(3),B_(3)N_(3)H_(6),O(SiH_(3))_(2),(SiH_(3))NCS,Ocl_(2),SCl_(2),PH_(3),PF_(3)

Find the number of molecules (s) in which shape of molecule is changed due to back bonding w.r.t under lined atom. ul(B)Cl_(3),ul(N)(CH_(3))_(3),ul(N)(SiH_(3))_(3),ul(P)(CH_(3))_(3),ul(B)(OCH_(3))_(3)

Find the number of molecules(s) in which direction of back bonding is form surrounding atom to central atom. BF_(3),OF_(2),O Cl_(2),ul(N)(CH_(3))_(3),BF_(4)^(-)

How many P=O bond present in (HPO_(3))_(3) ?

Among the following, the total number of species that contain(s) three-centered-two -electrons bond in their dimeric form is /are BH_(3), Al(CH_(3))_(3),AlCl_(3),BeH_(2),BeCl_(2),I Cl_(3)

How many sigma and pi bonds are present in (a) CH_(3)-C-=N (b) CH_(2)=C=O

How many sigma and pi bonds are present in (a) CH_(3)-C-=N (b) CH_(2)=C=O

How many compounds show amphoteric nature amongst following B_(2)O_(3),TI_(2)O_(3),Al(OH)_(3),Ga(OH)_(3),Al_(2)O_(3),Ga_(2)O_(3),NaAlO_(2),Sr(OH)_(2),Cr_(2)O_(3)

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

Total number of species among following, in which bond angle is equal to or less than 109^(@)28' and also they act as lewis base : NH_(3), NMe_(3), O(SiH_(3))_(2), ICl_(4)^(-), XeO_(3), BF_(2)Cl, SiF_(4), AsH_(3), SO_(2)F_(2)