Courses
Courses for Kids
Free study material
Offline Centres
More
Store Icon
Store
seo-qna
SearchIcon
banner

Allyl isocyanide has:
(A) 9σ and 4π – bonds
(B) 8σ and 5π – bonds
(C) 9σ, 3π and 2 non – bonded electron
(D) 8σ, 3π and 4 non – bonded electron

Answer
VerifiedVerified
440.4k+ views
like imagedislike image
Hint: The molecular formula of Allyl isocyanide is C4H4N. The molecular weight of Allyl isocyanide is 67.09g/mol.
Step by step answer:
seo images

Allyl isocyanide can also be written as CH2=CHCH2NC.
We can see that in the given compound there are seven single bonds, one double bond and one triple bond.
>  σ  bonds are the strongest type of covalent bond.  σ  bonds are formed by the head on overlapping atomic orbitals.
 π  bonds are covalent bonds in which the two lobes of an orbital on one atom overlap two lobes of an orbital on another atom and this overlap occurs laterally.
> The double bond has 1  σ  bond and 1  π  bond.
 > The triple bond has 1  σ  bond and 2  π  bonds.
And there are 2 non bonded electrons.
So in the given compound the number of  σ  and  π  bonds are 9 and 3 respectively with 2 non bonded electrons.
Therefore, Option C is the correct answer.

Additional Information:  σ  bonds results from the head on overlap of the two orbitals of the two atoms, which has more area of overlap than the  π  bonds which result from the parallel overlap of orbitals. That is why  σ  bonds are stronger than  π  bonds.

Note: The formula to calculate  σ  bonds is: X+Y-1
Where,
X = Number of Carbon atoms
Y = Number of Hydrogen atoms
The formula to calculate  π  bonds is: [{(2X-Y)2}+1]
Where,
X = Number of Carbon atoms
Y = Number of Hydrogen atoms