Advertisements
Advertisements
प्रश्न
Write balanced equation for a metal that evolves a gas which burns with a pop sound when boiled with alkali solutions.
Advertisements
उत्तर
\[\ce{2Al + \underset{Hot and conc.}{2NaOH} + 2H2O -> \underset{(colourless)}{\underset{Sodium meta aluminate}{2NaAlO2}} + 3H2}\]
APPEARS IN
संबंधित प्रश्न
Choose the most appropriate answer from the following list of oxides which fit the description.
[SO2, SiO2, Al2O3, MgO, CO, Na2O]
A basic oxide.
Choose the most appropriate answer from the following list of oxides which fit the description
[SO2, SiO2, Al2O3, MgO, CO, Na2O]
An amphoteric oxide
Name a metallic oxide soluble in excess of caustic soda solution.
Name two coloured metal ions.
What do you observe when caustic soda solution is added to the following solution: first a little and then in excess : CuSO4
Give two examples of amphoteric hydroxides.
Name: A metallic oxide soluble in excess of caustic soda solution.
Name: A strong alkali
Fill in the blank.
To distinguish soluble salts of zinc and lead ______ [NaOH / NH4OH]can be used.
Write balanced equations for a metal that evolves into a gas which burns with a pop sound when boiled with alkali solutions.
