Which of the following would result in the formation of strongest - - bond if the molecular axis is X - axis-A- 2 px -2 pxB- 2 py -2 pyC- 2 py -3 d xyD- 2 pz -4 pz

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Linear Combination of Atomic Orbitals

Which of the ...

Question

Which of the following would result in the formation of strongest $π$ - bond if the molecular axis is X - axis?

2 p_{x} + 2 p_{x}

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2 p_{y} + 2 p_{y}

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2 p_{y} + 3 d_{x y}

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2 p_{z} + 4 p_{z}

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Solution

The correct option is B $2 p_{y} + 2 p_{y}$
Since molecular axis is X-axis, thus for formation of $π$ - bond axis should be perpendicular to the molecular axis. So $2 p_{y} + 2 p_{y}$ overlap will give the strongest $π$ - bond. $2 p_{z} + 4 p_{z}$ will not be strongest one since principle quantum number is increased.

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Which of the following would result in the formation of strongest π - bond if the molecular axis is X - axis?

The correct option is B 2py+2pySince molecular axis is X-axis, thus for formation of π - bond axis should be perpendicular to the molecular axis. So 2py+2py overlap will give the strongest π - bond. 2pz+4pz will not be strongest one since principle quantum number is increased.

Which of the following would result in the formation of strongest $π$ - bond if the molecular axis is X - axis?