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COMEDK2021ChemistryChemical Bonding and Molecular Structure

Find the compound which have both polar and non-polar covalent bonds.

Options

  1. AHCN
  2. BH ₂ O ₂
  3. CNH ₄ Cl
  4. DCH ₄

Correct answer

B. H ₂ O ₂

Step-by-step solution

The molecule H ₂ O ₂ has the structure H - O - O - H . The O - H bond is a polar covalent bond due to the difference in electronegativity between oxygen and hydrogen atoms. The O - O bond is a non-polar covalent bond because it is formed between two identical atoms with zero electronegativity difference. Therefore, H ₂ O ₂ contains both polar and non-polar covalent bonds. Answer: H ₂ O ₂

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