Q 3. What are polyatomic ions? Give examples.
Polyatomic ions are ions that contain more than one atom. These atoms can be of the same type or of a different type.
Some examples of polyatomic ions are NH4+, OH-, SO42-, and SO32-.
CBSE Class 10 board exams twice a year ‘relief’ or ‘burden’? Parents, schools share mixed views
CBSE Class 10 exams twice a year from 2026; 64.4% students in favor, second attempt optional
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