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AP EAMCET202017 Sep 2020Morning ShiftChemistryChemical Bonding and Molecular StructureActual

In which of the following substances will hydrogen bonds be strongest?

Options

  1. A( HCl )
  2. B( H ₂ O )
  3. C( HI )
  4. D( H ₂ ~S )

Correct answer

B. ( H ₂ O )

Step-by-step solution

Ease of H-bonds formation, i.e., strength of hydrogen bonding given by electronegative elements follow the order. ( F > O > N > Cl ) So, ( HI ) and ( H ₂ ) S cannot make ( H )-bonds. In ( HCl ), ( H )-bonding is very weak in nature. Here, only ( H ₂ O ) will give strongest ( H )-bonding.

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