. Flashcards
(16 cards)
What happens when copper reacts with NaOH?
Blue ppt. is formed insoluble in excess
What is the color of the precipitate formed when Fe2+ reacts with NaOH?
The precipitate formed is green insoluble in excess.
True or False: Fe3+ forms a blue precipitate with NaOH.
False. Fe3+ forms a reddish-brown precipitate with NaOH insoluble in excess.
What color is the precipitate formed when Zinc reacts with NaOH?
The precipitate is white soluble in excess.
Fill in the blank: Calcium reacts with NaOH to produce a ________ precipitate.
white (insoluble in excess)
What color precipitate does Aluminium form when reacted with NaOH?
Aluminium forms a white precipitate soluble in excess
Which metal ion produces a green precipitate with NaOH?
Fe2+ produces a green precipitate.
What happens to the solution color of Fe3+ when NaOH is added?
The solution turns brown due to the formation of Fe(OH)3 precipitate insoluble in excess.
Multiple Choice: Which of the following metals produces a white precipitate with NaOH? A) Cu B) Zn C) Fe3+ D) Ca
B) Zn and D) Ca produce white precipitates.
What happens when Ammonium hydroxide reacts with Copper
Blue ppt. that dissolves in excess giving deep blue solution
What happens when Ammonium hydroxide reacts with Iron(II)
Dirty green ppt. insoluble in excess
What happens when Ammonium hydroxide reacts with Iron(III)
Reddish brown ppt. insoluble in excess
What happens when Ammonium hydroxide reacts with Zinc
White ppt. if formed soluble in excess
What happens when Ammonium hydroxide reacts with Calcium
Whit ppt. if formed insoluble in excess
What happens when Ammonium hydroxide reacts with Aluminium
White ppt. is formed insoluble in excess
