Q 4. How many atoms are present in a
(ii) ion?
ion has one atom of phosphorus and 4 atoms of oxygen.
And Hence,
total 5 atoms are present in ion.
CBSE Class 10, 12 result process revised; answer book photocopy now comes before re-evaluation
CBSE Class 10 result 2025 not expected this week, 'confirms' Board amid ruckus over result date
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