Cyanogen is a toxic gas with formula C2N2 and structure :NC–CN: The C–C bond in

Question

Cyanogen is a toxic gas with formula C2N2 and structure :NC–CN: The C–C bond in cyanogen is- A) a sigma () bond formed by overlap of two sp orbitals B) a sigma () bond formed by overlap of two sp2 orbitals C) a sigma () bond formed by overlap of two sp3 orbitals D) a pi () bond formed by overlap of two sp orbitals E) a pi () bond formed by overlap of two p orbitals

Phosgene has formula COCl2. The molecular geometry of phosgene is- A) tetrahedral B) linear C) bent B) trigonal planar C) trigonal pyramidal

Explanation / Answer

Cyanogen is a toxic gas with formula C2N2 and structure :NC–CN:

The C–C bond in cyanogen is-

A) a sigma () bond formed by overlap of two sp orbitals --> --> sigma bonds are the sinlge bonds present in C-C, also , note that sp is hybridized, since it has formed a triple bond, which implies sp orbitals all over carbon

B) a sigma () bond formed by overlap of two sp2 orbitals

C) a sigma () bond formed by overlap of two sp3 orbitals

D) a pi () bond formed by overlap of two sp orbitals

E) a pi () bond formed by overlap of two p orbitals

Phosgene has formula COCl2. The molecular geometry of phosgene is-

Central atom = C, bonded atoms Cl,Cl,O, then there is 120° between each species, since C=O bond is present

A) tetrahedral

B) linear

C) bent

B) trigonal planar

C) trigonal pyramidal

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