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NTA Abhyas NEET2020Chemistryp Block Elements (Group 15, 16, 17 & 18)Practice

Which given pair is isosteres?

Options

  1. AC l O 4 - and O C N -
  2. BN O 2 - and P O 4 3 -
  3. CC O 2 , N 2 O , N O 3 -
  4. DN O 2 - and O 3

Correct answer

D. N O 2 - and O 3

Step-by-step solution

Isosteres are atoms, molecules or ions containing the same number of atoms and valence electrons. N O 2 - and O 3 are isostere. The number of atoms in these ( = 3 ) and number of electrons ( 24 ) are same.

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