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Chemistry · PYQ NEET UG 2016(1)
हिन्दीThe ionic radii of \( A^{+} \) and \( B^{-} \) ions are \( 0.98 \times 10^{-10}\,\text{m} \) and \( 1.81 \times 10^{-10}\,\text{m} \). The coordination number of each ion in AB is:
Correct answer · Option 4
6
Explanation
Radius ratio \( r_+ / r_- = \frac{0.98 \times 10^{-10}}{1.81 \times 10^{-10}} = 0.541 \). This value lies in the range \( 0.414 - 0.732 \), which corresponds to octahedral geometry with coordination number 6.
