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AP EAMCET2014ChemistryChemical Bonding and Molecular Structure

What are the shapes of ethyne and methane?

Options

  1. ASquare planar and linear
  2. BTetrahedral and trigonal planar
  3. CLinear and tetrahedral
  4. DTrigonal planar and linear

Correct answer

C. Linear and tetrahedral

Step-by-step solution

Ethyne ( C ₂ H ₂ ) Number of -bonds at C -atom =2 Number of lone pair of electrons at C -atom =0 Total =2+0=2 Hybridisation is sp . C ₂ H ₂ is linear Methane ( CH ₄ ) Number of bonds at C -atom =4 Number of-lone pair of electrons at C-atom =0 Total =4+0=4 Hybridisation is sp ^3 . CH ₄ is tetrahedral.

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