WorksheetsPH-PHR 327L Quiz No. 3 SS 2022-2023
Total questions: 15
Worksheet time: 5mins
Its sulfide salt dissolves in concentrated HCl.
Mercury
Tin
Antimony
Cobalt
Iron
Gives dark colored precipitates with tannic acid.
Cobalt
Iron
Tin
Mercury
Antimony
Gives blue precipitate in addition of ammonium hydroxide. Turns to cyan upon addition of excess reagent.
Cobalt
Iron
Mercury
Tin
Antimony
Gives an orange red precipitate when sodium or hydrogen sulfide is added.
Cobalt
Antimony
Mercury
Iron
Tin
Gives a brown gelatinous precipitate with ammonia or alkali hydroxides.
Tin
Mercury
Cobalt
Antimony
Iron
Gives a blood red colored solution in addition of ammonium thiocyanate.
Iron
Cobalt
Mercury
Tin
Antimony
Gives a purple precipitate upon addition of sodium carbonate TS.
Cobalt
Iron
Antimony
Mercury
Arsenic
Gives a yellow precipitate in addition of sodium hydroxide TS.
Mercury
Antimony
Arsenic
Tin
Cobalt
Gives intense blue precipitate in addition of potassium ferricyanide.
Cobalt
Iron
Mercury
Antimony
Tin
True or False: In formation of tin (II) hydroxide, it is insoluble of the excess reagent (sodium hydroxide).
True
False
True or False: Mercury (II) sulfide is soluble in boiling nitric acid.
True
False
True or False: Scheele's green is also known as cupric hydrogen arsenate.
True
False
True or False: Copper aceto-arsenate is also known as Parrot Green.
True
False
True or False: A dark red brown precipitate is yielded when potassium ferrocyanide is added in cobaltous chloride solution.
True
False
True or False: Formation of a white precipitate of tin (II) hydroxide using ammonia TS will not dissolve the precipitate using the excess of the reagent used.
True
False
