(English Medium) ICSE Class 10 - CISCE Question Bank Solutions

Solution A is a sodium hydroxide solution. Solution B is a weak acid. Solution C is dilute sulphuric acid. Which solution will.
(i) Liberate sulphur dioxide from sodium sulphite
(ii) Give a white precipitate with zinc sulphate solution,(iii) Contain solute molecules and ions?

What do you observe when caustic soda solution is added to the following solution: first a little and then in excess : FeCl₃

What do you observe when caustic soda solution is added to the following solution: first a little and then in excess : ZnSO₄

What do you observe when caustic soda solution is added to the following solution: first a little and then in excess : Pb(NO₃)₂

What do you observe when caustic soda solution is added to the following solution: first a little and then in excess : CuSO₄

What is the reaction of freshly precipitated aluminium hydroxide with caustic soda solution? Give equation.

What do you understand by amphoteric oxide?

Give two examples of amphoteric hydroxides.

Name a metallic hydroxide soluble in excess of NH₄OH.

Name: A metallic oxide soluble in excess of caustic soda solution.

Name: A strong alkali

Name: A weak alkali.

Name: Two coloured ions

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 the chloride of a metal which is soluble in excess of ammonium hydroxide.

Name : A yellow monoxide that dissolves in hot and concentrated caustic alkali.

Name a compound containing zinc in the anion.

Fill in the blank.
The hydroxide which is soluble in excess of NaOH is _________ [Zn(OH)₂ / Fe(OH)₃ / Fe(OH)₂].

Fill in the blank.
The substance/s which react with hot conc. NaOH solution and undergoes a neutralization reaction ______ [Al₂O₃ / Al / Al(OH)₃]