1.

(a) Giving reasons arrange the following in the decreasing order of ionic mobility : Li^(+), Na^(+), Rb^(+), K^(+) (b) Explain the various reactions that occur in the Solvay process for the manufacture of Na_2CO_3 (c) Potassium carbonate cannot be prepared by Solvay process, why?

Answer» <html><body><p></p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :`Rb^(2+) gt K^(+) gt <a href="https://interviewquestions.tuteehub.com/tag/na-572417" style="font-weight:bold;" target="_blank" title="Click to know more about NA">NA</a>^(+) gt Li^+` because of lesser hydration of ion as size increases. In other words, hydrated radii of ions decrease as `Li^(+),Na^(+),K^(+),Rb^(+)`. <br/> (c) Potassium carbonate cannot be prepared by <a href="https://interviewquestions.tuteehub.com/tag/solvay-2276029" style="font-weight:bold;" target="_blank" title="Click to know more about SOLVAY">SOLVAY</a> process because potassium bicarbonate being more soluble than sodium bicarbonate does not get precipitated when `CO_2` is passed through a <a href="https://interviewquestions.tuteehub.com/tag/concentrated-409727" style="font-weight:bold;" target="_blank" title="Click to know more about CONCENTRATED">CONCENTRATED</a> solution of KCl <a href="https://interviewquestions.tuteehub.com/tag/saturated-3007745" style="font-weight:bold;" target="_blank" title="Click to know more about SATURATED">SATURATED</a> with `NH_3`</body></html>


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