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प्रश्न
Write balanced equation for a metal that evolves a gas which burns with a pop sound when boiled with alkali solutions.
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उत्तर
\[\ce{2Al + \underset{Hot and conc.}{2NaOH} + 2H2O -> \underset{(colourless)}{\underset{Sodium meta aluminate}{2NaAlO2}} + 3H2}\]
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संबंधित प्रश्न
Give a chemical test to distinguish between the given pairs of chemicals:
Lead nitrate solution and Zinc nitrate solution
Name two colourless metal ions.
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 : Pb(NO3)2
Name a metallic hydroxide soluble in excess of NH4OH.
Name: Two bases which are not alkalis but dissolve in strong alkalis.
Name : A yellow monoxide that dissolves in hot and concentrated caustic alkali.
Fill in the blank.
The substance/s which react with hot conc. NaOH solution and undergoes a neutralization reaction ______ [Al2O3 / Al / Al(OH)3]
Fill in the blank.
To distinguish soluble salts of zinc and lead ______ [NaOH / NH4OH]can be used.
What do you see when sodium hydroxide solution is added to zinc sulphate solution, till it is in excess?
