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Which of the following salts show maximum value of equivalent conductance in their fused state?

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in Chemistry – Class 12 by (188k points)
Which of the following salts show maximum value of equivalent conductance in their fused state?

(a) NaCl

(b) KCl

(c) RbCl

(d) CsCl

This question was addressed to me during an online interview.

My enquiry is from Conductance of Electrolytic Solutions in chapter Electrochemistry of Chemistry – Class 12

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Correct option is (d) CsCl

Explanation: On moving down a group, the atomic size of the elements increases and so their covalent character also decreases. Thus, CsCl, being the least covalent compound will readily give its ions in its fused state. Therefore, CsCl has the maximum value of equivalent conductance in its fused state.

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