Q45 / 180 · JIPMER 2016 · Chemistry
Beryllium differs in properties from other elements of its own group but shows resemblance with aluminium because of
- Arelatively bigger ionic radius and high polarising power of Be
- Correct answerBrelatively smaller ionic radius and high polarising power of Be
- Crelatively bigger ionic radius is the only reason behind this
- DNone of the above
Solution
Due to relatively smaller ionic radius and high polarising power, Be differs in properties from other elements of its own group. Polarising powers of $\mathrm{Be}^{2+}$ and $\mathrm{Al}^{3+}$ ions are almost the same, thus they show similarities in their properties.
Hence, the correct answer is option: 'B'.