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NEET 2016
Exam
NEET
Year
2016
Subject
Chemistry
Chapter
Chemical Bonding and Molecular Structure

NEET 2016 · Chemistry · Chemical Bonding and Molecular Structure

Predict the correct order among the following:

Predict the correct order among the following:

Options

  1. ALone pair - lone pair > lone pair - bond pair > bond pair - bond pair
  2. BLone pair - lone pair > bond pair - bond pair > lone pair - bond pair
  3. CBond pair - bond pair > lone pair - bond pair > lone pair - lone pair
  4. DLone pair - bond pair > bond pair - bond pair > lone pair - lone pair

Correct answer

A. Lone pair - lone pair > lone pair - bond pair > bond pair - bond pair

Step-by-step solution

As per VSEPR theory, overall order of Repulsion is:

Bond pair-bond pair<Bond pair-lone pair<Lone pair-lone pair\text{Bond pair-bond pair<Bond pair-lone pair<Lone pair-lone pair}. Since lone pair occupy more space in comparison to bond pair therefore, it causes more repulsion.

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