35. Which metal ion will not be soluble in excess NH,? A. Ag B. Cu C. Co D. Pb 3

Question

35. Which metal ion will not be soluble in excess NH,? A. Ag B. Cu C. Co D. Pb 36. A well near the beach is suspected to be contaminated with chloride ions from sea water oride is present, which of the following will produce a cloudy suspension when mixed with the water? A AgNO, (aq) B. NaNO (aq) C. acetic acid(aq) D. LiBr (aq) E. KC,H O: (aq) 37. Mixing which of the following will produce a precipitation reaction? A. HNO(aq) and NaOH (aq) B. Pb(NO)(aq) and Na SO (aq C. NaOH(aq) and KBr(aq) D. Zn(s) and HCI(aq) E. Na2SO,(aq) and HCI(aq) 38. Which of the following precipitates will not dissolve in excess OH? A. Mg(OH)2 B. Al(OH) C. Pb(OH)2 D. Cu(OH)2 E. Zn(OH)2 39. Mixing which of the following aqueous solutions will not produce a precipitation reaction? A. KOH(limited) and Pb(NO3)2 B. FeCl and Cu(NO,)2 C. CoSO, and Pb(NO:)2 D. CoSO, and (NH4) S E. FeCl and (NH:)2S What type of reaction is: KHCO (aq) + HNO (aq) KNO (aq) + H:0U)+ CO1g)?

Explanation / Answer

35. Pb2+ ion will not be soluble in ammonia.

36. AgNO3

37. ans is (C)

38. Al(OH)3

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