1):Which of the following salts should be soluble in water? (Mark all that apply

ID: 508400 • Letter: 1

Question

1):Which of the following salts should be soluble in water?

(Mark all that apply)

A) iron (II) chloride B) potassium sulfate

C) barium phosphate D) aluminum oxide E) strontium carbonate

2): Which of the following salts should be insoluble in water?

(Mark all that apply)

A) silver chloride B) lead (II) sulfate C) lithium phosphate

D) magnesium sulfate E) ammonium carbonate

3): What insoluble salt is formed in the following reaction?

Sr(NO3)2(aq) + Na3PO4(aq) Ò ?

A) strontium phosphate B) sodium nitrate C) strontium phosphide

D) strontium phosphite E) sodium nitrite

4): What insoluble salt is formed in the following reaction?

Sr(NO3)2(aq) + Na3PO4(aq) Ò ?

A) Sr3(PO4)2(s) B) SrPO4(s) C) Sr2PO4(s)

D) NaNO3(s) E) Na2NO3(s) AB) Na(NO3)2(s)

Answer:

1) Following salts are soluble in water

B) Potassium sulfate (K2SO4) E) strontium carbonate (SrCO3)

[Note : A) Fe(II) chloride (FeCl2) C)Barium phosphate (Ba3(PO4)2 D) Aluminum oxide Al2O3 are insoluble in water]

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2) Following salts are insoluble in water :

A) Silver chloride (AgCl) B) lead (II) sulfate PbSO4

[Note : C) Lithium phosphate Li3PO4 D) Magnesium sulfate MgSO4 E) ammonium carbonate (NH4)2CO3 are wateer soluble]

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Sr(NO3)2(aq) + Na3PO4(aq) ------------> Sr3(PO4)2 (s) + 3 NaNO3 (aq)

Two produucts are formed as , A) Strontium phosphate Sr3(PO4)2 B) Sodium nitrate NaNO3

of which NaNO3 is soluble salt and Stronsium phosphate (Sr3(PO4)2)

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