PRELIM Flashcards
Forms yellow precipitate with sodium hydroxide?
Mercuric
Lilac to purple red appearance with sodium when viewed through glass is a positive result of?
Potassium, Rubidium, Cesium
Red film deposit can be found as a reaction of what ion?
Cupric
What ion produces black ppt?
Mercury
Flame test: Cesium
Lilac - Purple-red and Azure
Forms white ppt with NaOH and NaHCO and is soluble with NHCl?
Litihium
All of the following produce Yellow-green flame, except?
Barium
Manganese
Molybdenum
All of the above
None of the above
None of the above
What compound acidified NaCl in oxalate test for Calcium?
Acetic Acid
Which of the following elements imparts a characteristics of violet color to non-luminous flame?
Sodium
Potassium
Ferric
Copper
Potassium
All of the following are insoluble potassium compounds, except?
K2PtCl6
KClO4
KNaCO(NO)226
All of the above
None of the above
None of the above
Identification test for copper producing a reddish-brown insoluble precipitate is a product of?
Hydrochloric acid
Ammonia
Ferricyanide
Ferrocyanide
Ferrocyanide
Flame test: Bright-green
Boron
Salts that produces blue-green flame?
Phosphates
The following are not considered as reducing agents in silver mirror tests, except?
Formaldehyde
Acetate
Methanol
All of the above
None of the above
Formaldehyde
Flame test: Light blue
Arsenic
The color of the flame produced by lithium?
crimson red
The ion that gives a white precipitate with HCl which is soluble in excess ammonium hydroxide butreprecipitated upon addition of nitric acid:
silver
mercurous
plumbous
cupric
silver
Product of Ammonium chloride and Sodium hydroxide upon decomposition?
Ammonia
Chlorine
Oxygen
Carbon dioxide
Ammonia
Copper imparts a characteristic _________ color to a nonluminous flame:
emerald green
blue
scarlet
golden yellow
,
emerald green
Color reaction for Strontium when subjected to flame with or without barium masking?
Brilliant red
Crimson
Scarlet
None of the above
All of the above
All of the above
Flame test: Lithium
Carmine to Magenta
Flame test: Intense yellow
Sodium; Sodium compounds
Element with faint-green flame?
Antimony
Positive reaction for KCl combined with Sodium bitartrate
White crytalline insoluble ppt
White crystalline soluble ppt.
No reaction
Black curdling ppt
White crystalline soluble ppt.
Flame test: Red unfiltered flame?
Rubidium
Barium sulfate is ______________ with nitric acid
Insoluble
Compound producing azure flame?
Lead
Selenium
Copper chloride
All of the above
None of the above
All of the above
Flame test: Zinc
White-green
Transient yellowish-red color in non luminous flame is a reaction by one of the following, except?
Calcium chloride
Hydrochloric acid
Ethanol
All of the above
None of the above
Ethanol
What is the indication that the solution is acidic?
Blue litmus paper turns red
