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प्रश्न
Choose the most appropriate answer from the following list of oxides which fit the description.
[SO2, SiO2, Al2O3, MgO, CO, Na2O]
An amphoteric oxide
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उत्तर
Al2O3
संबंधित प्रश्न
Name
a metallic hydroxide soluble in excess of NH4OH.
Name the metal hydroxides which are:
Sparingly soluble
In caustic soda solution
Name the metal hydroxides which are :
(a) Insoluble (b) Soluble in
(i) Caustic soda solution (ii) Ammonium hydroxide solution.
Name the metal hydroxides which are soluble in caustic soda solution.
What do you observe when caustic soda solution is added to the following solution: first a little and then in excess : ZnSO4
Give two examples of amphoteric hydroxides.
Fill in the blank.
The substance/s which react with hot conc. NaOH solution and undergoes a neutralization reaction ______ [Al2O3 / Al / Al(OH)3]
Choose the correct answer from the options given below :
Metal + alkali → salt + _________
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?
Write balanced equations for a metal that evolves a gas which burns with a pop sound when boiled with alkali solutions.
