Comprehension \( \quad: \) From the given type of lattice, we can determine ionic radii of the c...

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Comprehension \( \quad: \) From the given type of lattice, we can determine ionic radii of the cations and anions. Answer the question at the end of it.

MT, MQ, RT and RQ have NaCl type lattice with following parameters.
Salt Anion-Anion distance Cations-anions distance
\( \begin{array}{ccc}\mathrm{MT} & 2.40 \AA & 1.70 \AA \\ \mathrm{MQ} & 1.63 \AA & 1.15 \AA \\ \mathrm{RT} & 2.66 \AA & 1.88 \AA \\ \mathrm{RQ} & 2.09 \AA & 1.48 \AA\end{array} \)
Adjoining structure decided on the basis of values above, is of
(a) \( \mathrm{MQ} \)
(b) RT
(c) \( \mathrm{MT} \)
(d) All of these
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