Worksheetslab 9 result
Total questions: 20
Worksheet time: 10mins
What will happen with the cations in experiment no. 9 when treated with a solution of 1M NH4NO3?
no visible effect
produces more precipitates
dissolve some of the precipitate
produces an effervescence
Which of the following cation will produce a reddish brown ppt in a light red solution that will dissolve in an excess of the KCN solution?
Cd2+
Co2+
Cu2+
Ni2+
Which of the following cation will produce a yellow ppt in a colorless solution when reacted with C2H5NS reagent?
Cd2+
Co2+
Cu2+
Ni2+
Which of the following cation will produce a reddish brown precipitate when reacted with H2C2H302 and KaFe(CN)6 solutions?
Cd2+
Co2+
Cu2+
Ni2+
Which of the following cation will produce a rose-red ppt in a pink solution when reacted with DMG reagent?
Cd2+
Co2+
Cu2+
Ni2+
Which of the following cation will produce a yellow precipitate when reacted with H2C2H302 and KNO2 reagents?
Cd2+
Co2+
Cu2+
Ni2+
Which of the following cation will produce a blue-black ppt in a light-yellow solution when reacted with NH4CNS and benzidine reagents?
Cd2+
Co2+
Cu2+
Ni2+
Which of the following cation will produce a green ppt in light yellow solution that will dissolve in an excess of the KCN solution?
Cd2+
Co2+
Cu2+
Ni2+
Which of the following cation will produce a bluish white precipitate when reacted with H2C2H302 and K4Fe (CN)6 solutions?
Cd2+
Co2+
Cu2+
Ni2+
Which of the following cation will produce no precipitate but a pale-blue green solution is formed when reacted with DMG reagent?
Cd2+
Co2+
Cu2+
Ni2+
Which of the following cation will produce a greenish-brown or olive green ppt when reacted with NH4CNS and benzidine reagents?
Cd2+
Co2+
Cu2+
Ni2+
Which of the following cation will produce a red precipitate when reacted with H2C2H302 and K4Fe(CN)6 solutions?
Cd2+
Co2+
Cu2+
Ni2+
Which of the following cation will produce a yellow-orange ppt when reacted with NH4CNS and benzidine reagents?
Cd2+
Co2+
Cu2+
Ni2+
Which of the following cation will produce no precipitate but a pale green solution is formed when reacted with DMG reagent?
Cd2+
Co2+
Cu2+
Ni2+
Which of the following cation will not produce a precipitate but a green solution forms when reacted with H2C2H302 and KNO2 reagents?
Cd2+
Co2+
Cu2+
Ni2+
Which of the following cation will produce a yellow precipitate when reacted with H2C2H302 and K4Fe (CN)6 solutions?
Cd2+
Co2+
Cu2+
Ni2+
Which of the following cation will produce a white ppt in a colorless solution that will dissolve in an excess of the KCN solution?
Cd2+
Co2+
Cu2+
Ni2+
Which of the following cation will produce a blue colored solution but no ppt when reacted with NH4CNS and benzidine reagents?
Cd2+
Co2+
Cu2+
Ni2+
What are the observation results if 6M (NH4)2S is added to a solution containing Ni2+ ions?
formation of black ppt in a colorless solution
formation of black ppt in a blue-green solution
formation of a black ppt in a light brown solution
formation of black ppt in a pale-blue solution
formation of black ppt in a yellow-green solution
What are the observation results if 6M (NH4)2S is added to a solution containing Cu2+ ions?
formation of a black ppt in a colorless solution
formation of a buff ppt in a light brown solution
formation of a black ppt in a yellow-green solution
formation' of a blue ppt in a yellow-green solution
formation of yellow-orange ppt in a yellow solution
