Fill in the Blank

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

रिक्त स्थान भरें

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

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Action of Alkalis on Certain Metals

क्या इस प्रश्न या उत्तर में कोई त्रुटि है?

अध्याय 4: Analytical Chemistry - Exercise 2 [पृष्ठ ८६]

अध्याय 4 Analytical Chemistry
Exercise 2 | Q 5.5 | पृष्ठ ८६

Choose the most appropriate answer from the following list of oxides which fit the description.

[SO₂, SiO₂, Al₂O₃, MgO, CO, Na₂O]

A basic oxide.

Name a strong alkali.

Name a weak alkali.

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 : FeCl₃

Name a metallic hydroxide soluble in excess of NH₄OH.

Name a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.

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

Write balanced equations for a metal that evolves a gas which burns with a pop sound when boiled with alkali solutions.