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STD 11 - 4. Chemical bonding and molecular structure — JEE STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceJEESTD 11 - 4. Chemical bonding and molecular structure4 Marks
MCQ
Which of the following overlaps is incorrect (assuming $Z -$ axis is internuclear  axis) ? 

$(A) \,2p_y +2p_y \to \pi-$ Bond formation

$(B) \,2p_x + 2p_x \to \sigma-$ Bond formation

$(C)\, 3d_{xy} + 3dp_{xy} \to \pi$ -Bond formation

$(D)\, 2s + 2p_y \to \pi-$ Bond formation

$(E)\, 3d_{xy} + 3d_{xy} \to \delta -$ Bond formation

$(F)\, 2p_s + 2p_s \to \sigma-$ Bond formation

  • A
    $A, B, C$
  • B
    $C, F$
  • C
    $B, E$
  • D
    $B, C, D$
✓

Answer

$(d)$ Incorrect overlaps (if internulcear axis $= Z$)

$(B)\, 2p_x +2p_x \Rightarrow \pi-$ bond;

$(C) \,3d_{xy} +3d_{xy} \Rightarrow \delta$ -bond;

$(D)\, 2s +2p_y \Rightarrow$ No bond formation.

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