Which single reagent distinguishes Sr^2+ from Ca^2+ by giving a white precipitate (slowly, on standing) with Sr^2+ only,

Question

Which single reagent distinguishes Sr^2+ from Ca^2+ by giving a white precipitate (slowly, on standing) with Sr^2+ only, when added to a clear, acid-free aqueous solution of each ion?

Accepted Answer

a saturated solution of CaSO4 (gypsum water)

Answer

dilute HCl

Answer

aqueous NH4SCN

Answer

dilute aqueous ammonia

Which single reagent distinguishes $Sr X^{2 +}$ from $Ca X^{2 +}$ by giving a white precipitate (slowly, on standing) with $Sr X^{2 +}$ only, when added to a clear, acid-free aqueous solution of each ion?

Answer: D

More questions on Group V and VI cations (Ba, Sr, Ca, Mg) and NH4+

Which single reagent distinguishes SrX2+ from CaX2+ by giving a white precipitate (slowly, on standing) with SrX2+ only, when added to a clear, acid-free aqueous solution of each ion?

Answer: D

More questions on Group V and VI cations (Ba, Sr, Ca, Mg) and NH4+

Which single reagent distinguishes $Sr X^{2 +}$ from $Ca X^{2 +}$ by giving a white precipitate (slowly, on standing) with $Sr X^{2 +}$ only, when added to a clear, acid-free aqueous solution of each ion?