हिंदी

Name a Solution that Will Separate the Component of the Following Mixture: Cao from Pbo - Chemistry

Advertisements
Advertisements

प्रश्न

Name a solution that will separate the component of the following mixture: CaO from PbO

एक पंक्ति में उत्तर
Advertisements

उत्तर

CaO from PbO:
Sodium hydroxide solution can separate CaO from PbO as CaO precipitates are sparingly soluble in excess of NaOH solution while PbO precipitates are soluble in excess of NaOH solution.

shaalaa.com
Action of Alkalis on Metal Oxides
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 4: Analytical Chemistry - Exercise 1 [पृष्ठ ८५]

APPEARS IN

फ्रैंक Chemistry Part 2 [English] Class 10 ICSE
अध्याय 4 Analytical Chemistry
Exercise 1 | Q 8.2 | पृष्ठ ८५

संबंधित प्रश्न

You are given three white powders-calcium carbonate, lead carbonate and zinc carbonate. Describe the tests you would carry out in solution, to identify the metal ion in each of the above compounds. Indicate clearly how you would prepare the solutions for the tests.


Give one chemical test to distinguish between the following pair of compounds:

Iron (II) chloride solution and iron (III) chloride solution


Give the balanced equations for the reaction with two different amphoteric oxides with a caustic alkali.


Write a balanced equation for the following conversion:

\[\ce{ZnSO4 ->[A]Zn(OH)2->[B]Na2ZnO2}\]


A given white crystalline salt was tested as follows:

A flame test on the salt gave a persistent golden-yellow colourisation. What conclusions can be drawn for the observation?


When an ammonium salt is warmed with sodium hydroxide solution, a gas is evolved. State three ways in which you could identify this gas.


The questions (i) to (v) refer to the following salt solutions listed A to F.

           A.Copper Nitrate

           B.Iron (II) Sulphate

           C.Iron (III) chloride

           D.Lead Nitrate

           E.Magnesium sulphate

          F.Zinc chloride

(I)Which two solutions will give a white precipitate when treated with dilute hydrochloric acid followed by a barium chloride solution?

(II)Which two solutions will give a white precipitate when treated with dilute nitric acid followed by silver nitrate solution?

(III)Which solution will give white precipitate, when either dilute hydrochloric acid or dilute sulphuric acid is added to it?

(IV)Which solution becomes a deep/inky blue colour when the excess of ammonium hydroxide is added to it?

(V)Which solution gives a white precipitate with an excess of ammonium hydroxide solution?


Write a balanced equation for a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.


Which of the following about oxides is correct?


Write balanced equation for a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×