MEDIUM
10th ICSE
IMPORTANT
Earn 100

Name a white insoluble oxide that dissolves when fused with caustic soda or caustic potash.

Important Questions on Analytical Chemistry Use of Ammonium Hydroxide and Sodium Hydroxide

MEDIUM
10th ICSE
IMPORTANT
What is the reaction of freshly precipitated aluminium hydroxide with caustic soda solution? Give equation.
MEDIUM
10th ICSE
IMPORTANT
Identify a blue solution that turns deep blue on the addition of an excess of NH4OH.
MEDIUM
10th ICSE
IMPORTANT
Name a hydroxide which is soluble in excess of ammonium hydroxide.
MEDIUM
10th ICSE
IMPORTANT

Identify the cation in the following case:

Sodium hydroxide solution when added to the solution 'A' gives the reddish-brown precipitate.

MEDIUM
10th ICSE
IMPORTANT

Identify the cation in the following case:

Ammonium hydroxide solution when added to solution 'C' gives a bluish-white precipitate which is soluble in excess.

MEDIUM
10th ICSE
IMPORTANT
Name the metallic hydroxide which is insoluble in caustic soda but soluble in excess of ammonium hydroxide.
HARD
10th ICSE
IMPORTANT

Write the observation and balanced equation for the following reaction:

Sodium hydroxide is added drop-wise till in excess of a solution of zinc sulphate.

HARD
10th ICSE
IMPORTANT

Write the observation and balanced equation for the following reaction:

Ammonium hydroxide is added first in a small quantity and then in excess to a solution of copper sulphate.