Let's assume the C1 ≡ C2 bond in acetylene is along zaxis. Find out the correct combination of atomic orbitals with non-zero overlapping.

Question

Let's assume the C1 ≡ C2 bond in acetylene is along zaxis. Find out the correct combination of atomic orbitals with non-zero overlapping. (A) 2 Px of C 1 and 2 Py of C 2 (B) 2 Pz of C1 and 2 Py of C2 (C) 2 Px of C 1 and 2 S of C 2 (D) 2 Pz of C1 and 2 Pz of C2

Tardigrade Admin · Accepted Answer

In acetylene, we have 2 pz of C1 and 2 pz of C2 along z-axis, because both orbitals are p-orbitals and are in same direction, i.e. z-direction. The formula of acetylene is CH ≡ CH.

Q. Let's assume the $C^{1} \equiv C^{2}$ bond in acetylene is along zaxis. Find out the correct combination of atomic orbitals with non-zero overlapping.

$2 P_{x}$ of $C^{1}$ and $2 P_{y}$ of $C^{2}$

$2 P_{z}$ of $C^{1}$ and $2 P_{y}$ of $C^{2}$

$2 P_{x}$ of $C^{1}$ and $2 S$ of $C^{2}$

$2 P_{z}$ of $C^{1}$ and $2 P_{z}$ of $C^{2}$

In acetylene, we have $2 p_{z}$ of $C_{1}$ and $2 p_{z}$ of $C_{2}$ along $z$ -axis, because both orbitals are $p$ -orbitals and are in same direction, i.e. $z$ -direction.
The formula of acetylene is $C H \equiv C H$ .

Q. Let's assume the C1≡C2 bond in acetylene is along zaxis. Find out the correct combination of atomic orbitals with non-zero overlapping.

2Px​ of C1 and 2Py​ of C2

2Pz​ of C1 and 2Py​ of C2

2Px​ of C1 and 2S of C2

2Pz​ of C1 and 2Pz​ of C2