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MHT CET202619 April 2026Morning ShiftChemistryChemical Bonding and Molecular StructureActual

What is the number of sp^3 hybrid carbon atoms in HO ( CH ₂)₂ CH ( CH ₃)₂ ?

Options

  1. A2
  2. B3
  3. C4
  4. D5

Correct answer

D. 5

Step-by-step solution

The given molecule is 3-methylbutan-1-ol, with the expanded structural formula HO - CH ₂- CH ₂- CH ( CH ₃)- CH ₃ . In this structure, every carbon atom is bonded to four other atoms (either carbon, hydrogen, or oxygen) entirely through single ( ) bonds. Since there are no bonds present, all the carbon atoms are sp^3 hybridized. Counting the carbon atoms: Two - CH ₂- groups 2 carbon atoms One - CH - group 1 carbon atom Two - CH ₃ groups 2 carbon atoms Total number of sp^3 hybridized carbon atoms = 2 + 1 + 2 = 5 .

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