What Do You Observe When Caustic Soda Solution is Added to the Following Solution: First a Little and Then in Excess : Cuso4

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

बेरीज

Addition of Caustic soda to CuSO₄Solution :
\[\ce{CuSO4 + 2NaOH ->\underset{\text{Pale blue ppt.}}{ Cu(OH)2 v + Na2SO4}}\]

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Action of Alkalis on Certain Metals

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पाठ 4: Analytical Chemistry - Exercise 1 [पृष्ठ ८५]

पाठ 4 Analytical Chemistry
Exercise 1 | Q 5.4 | पृष्ठ ८५

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

[SO₂, SiO₂, Al₂O₃, MgO, CO, Na₂O]

An oxide which dissolves in water forming an acid

Name a weak alkali.

Name two coloured metal ions.

Name two bases which are not alkalis but dissolves in strong alkalis.

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

Give two examples of amphoteric hydroxides.

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

Write the equation for the following reaction :
Zinc oxide is treated with sodium hydroxide solution.

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