Fill in the Blank

Fill in the blank.
To distinguish soluble salts of zinc and lead ______ [NaOH / NH₄OH]can be used.

Fill in the Blanks

To distinguish soluble salts of zinc and lead NH₄OH can be used.

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Action of Alkalis on Certain Metals

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Chapter 4: Analytical Chemistry - Exercises [Page 83]

Chapter 4 Analytical Chemistry
Exercises | Q 2. (e) | Page 83

When a metallic oxide is dissolved in water, the solution formed has a high concentration of ____________ ions (H⁺, h₃O⁺, OH^-)

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 two coloured metal ions.

Name the metal hydroxides which are:

Sparingly 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

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

Name: A strong alkali

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

Choose the correct answer from the options given below :
Metal + alkali → salt + _________

Choose the correct answer:
The metal oxide which can react with acid as well as alkali is: