KCET2017ChemistryAldehydes and Ketones
Which of the following is the correct electron dot structure of ( N ₂ O ) molecule ?
Options
- A( : N = N = O )
- B( : N =N⁺- O : )
- C( : N =N=N=O-O-N= O )
- D( : N - N = O )
Correct answer
B. ( : N =N⁺- O : )
Step-by-step solution
Electron dot structure of N ₂ O molecule First draw the main skeleton structure of N ₂ O having N - N - O connectivity with single bonds without showing any formal charge, that is, Total number of valence electrons =(5 2)+(6 1)=16 e⁻ s Four electrons are used to form two bonds in the skeleton structure Remaining valence electrons =16-4=12 The central nitrogen atom needs two more lone pairs, terminal nitrogen atom needs three more lone pairs and oxygen atom needs three more lone pairs to complete their octet. Theref