Which is stronger base in each pair–

Chemistry S and P - Block Elements (S - Block Elements Not In Syllabus ) Mix Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 12, 2026

C l O2¯ C l O3¯

OH¯ CN¯

I¯ Cl¯

CH3CH2¯ CH2=CH¯ (e) NO3¯ NO2¯ (f) H2PO2¯ H2PO3¯

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Sol. If acid is strong, its conjugate base is week and viceversa –

ClO2– OH– Cl–

CH3CH2– (e) NO2– (f) H2PO2–

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