Question

Boron resembles silicon in properties. This resemblance is mainly due to equal values of:

• A. electro negativities of boron and silicon
• B. atomic volumes of boron and silicon
• C. densities of boron and silicon
• D. polarising powers of $B^{3+}andS{i}^{4+}$

Answer 1

The correct option is D polarising powers of $B^{3+}andS{i}^{4+}$

$B^{3+}$ and $S{i}^{4+}$ have similar charge density in their electron clouds (diagonal relationship) and thus have similar polarising powers.