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NEET2009ChemistryChemical Bonding and Molecular StructureActual

Which of the following does not have coordinate bond?

Options

  1. ASO ₂
  2. BHNO ₃
  3. CH ₂ SO ₃
  4. DHNO ₂

Correct answer

D. HNO ₂

Step-by-step solution

A. SO ₂ (Sulfur Dioxide) 1. Sulfur has 6 valence electrons and each oxygen has 6 valence electrons. 2. In SO ₂ , sulfur forms two double bonds with two oxygen atoms. 3. One of the oxygen atoms can donate a lone pair to sulfur, forming a coordinate bond. 4. Therefore, SO ₂ has a coordinate bond. B. HNO ₃ (Nitric Acid) 1. Nitrogen has 5 valence electrons, each oxygen has 6, and hydrogen has 1. 2. In HNO ₃ , nitrogen forms one double bond with one oxygen and single bonds with the other oxygen and hydrogen. 3. The nitr

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