Which of the following pairs share both isoelectronicity and isostructural characteristics?

NO3-,CO3-2,ClO3-,SO3

1. NO3-,CO3-2

2. SO3,NO3-

3. ClO3-,CO3-2

4. CO3-2,ClO3-

Subtopic:  Types of Chemical Bond |
 75%
From NCERT
NEET - 2016
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