Advertisements
Advertisements
प्रश्न
Name two coloured metal ions.
Advertisements
उत्तर १
Fe2+, Mn2+
उत्तर २
Cupric (Blue) [Cu2+], Ferric (Yellow) [Fe3+]
संबंधित प्रश्न
Name a strong alkali.
Name a weak alkali.
Name the metal hydroxides which are :
(a) Insoluble (b) Soluble in
(i) Caustic soda solution (ii) Ammonium hydroxide solution.
What do you observe when caustic soda solution is added to the following solution: first a little and then in excess : ZnSO4
Name: Two bases which are not alkalis but dissolve in strong alkalis.
Name a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.
Name : A yellow monoxide that dissolves in hot and concentrated caustic alkali.
When ammonium hydroxide is added to solution B, a pale blue precipitate is formed. This pale blue precipitate dissolves in excess ammonium hydroxide to give an inky blue solution. Name the cation present in solution B. What is the probable colour of solution B?
One chemical test that would enable you to distinguish between the following pair of chemicals. Describe what happens with each chemical or state 'no visible reaction'.
Calcium nitrate solution and zinc nitrate solution.
Write balanced equation for a metal that evolves a gas which burns with a pop sound when boiled with alkali solution.
