When Zeolite, which is hydrated sodium aluminium silicate is treated with hard water, the sodium ions are exchanged with which of the following ion(s)?
(i) H+ ions
(ii) Mg2+ ions
(iii) Ca2+ ions
(iv) SO42– ions
When Zeolite, which is hydrated sodium aluminium silicate is treated with hard water, the sodium ions are exchanged with which of the following ion(s)?
(i) H+ ions
(ii) Mg2+ ions
(iii) Ca2+ ions
(iv) SO42– ions
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1 Answer
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This is a multiple choice type question as classified in NCERT Exemplar
Correct option (ii) and (iii)
Zeolite is sodium aluminum silicate. It is used to reduce the hardness of water. It has a property to exchange Mg2+ ions and Ca2+ ions from hard water by the Na+ions of zeolite.
Similar Questions for you
Li+ has the highest hydration enthalpy.
Hence it is most hydrated
Therefore, Correct order of hydrated radii is Cs+ < Rb+ < K+ < Na+ < Li+
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