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  • Need explanation for: Which of the following species contains three bond pairs and one lone pair around the central atom?

Which of the following species contains three bond pairs and one lone pair around the central atom?

  • Option 1)

    H2O

  • Option 2)

    BF3

  • Option 3)

    \text{NH}_{2}^{-}

  • Option 4)

    PCl3

 

Answers (1)

best_answer

As we learnt in

Lewis structure -

1. pair of bonded electrons is by means of a dash (-) usually called a bond 

2. Lone pairs or non-bonded electrons are represented by dots

3. Electron represent in the last shell of atoms are called valence electrons. 

- wherein

 

 

 

 


Option 1)

H2O

This option is incorrect.

Option 2)

BF3

This option is incorrect.

Option 3)

\text{NH}_{2}^{-}

This option is incorrect.

Option 4)

PCl3

This option is correct.

Posted by

divya.saini

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