English

What is the chemical composition of malachite? - Chemistry

Advertisements
Advertisements

Question

What is the chemical composition of malachite?

  1. CuO . CuC03
  2. Cu(OH)2 CuC03
  3. CuO.Cu(OH)2         
  4. Cu2O . Cu(OH)2

Solution

Cu(OH)2.CuCO3
The chemical composition of malachite is Cu(OH)2.CuCO3.

shaalaa.com
  Is there an error in this question or solution?
2014-2015 (March)

APPEARS IN

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

Write the names and chemical formulae of any one ore of zinc.


Write the names and chemical formulae of any one ore of iron.


The process of leaching alumina, using sodium carbonate is called

  • Bayer's process
  • Decomposition
  • Cyanide process
  • Hall's process

Mention names and formulae of two ores of alumunium.


Draw neat and labelled diagram of Bessermer converter used in the extraction of copper.


Purification of aluminium by electrolytic refining is carried out by

(a)Hoope process

(b)Hall process

(c)Baeyer process

(d)Serperck process


In the extraction of Al, impure Al2O3 is dissolved in conc. NaOH to form sodium aluminate and leaving impurities behind. What is the name of this process?


Which form of the iron is the purest form of commercial iron?


Name the method used for refining of copper metal.


Define Leaching.


Write the names and chemical formulae of any ‘two’ minerals of aluminium.


Explain the following methods to protect metals from corrosion:

Galvanization


What is the role of the following compound- 
SiO2 in the extraction of copper from copper pyrites?


In the extraction of zinc from zinc blende:

(i) Give an equation to show how zinc oxide is converted to zinc.
(ii) How is impure zinc finally electro-refined? 


What happens when a nickel rod is dipped into a copper sulphate solution? Justify your answer.

`[E_((Ni^(+2))/(Ni))^0 = -0.25"v" and E  _(("Cu"^(+2))/("Cu"))^0 = +0.34"v"]`


Describe the role of the Cryolite in the extraction of aluminium from pure alumina.


Carbonate ore of iron is ____________.


When copper ore is mixed with silica, in a reverberatory furnace copper matte is produced. The copper matte contains ______.


Although carbon and hydrogen are better reducing agents but they are not used to reduce metallic oxides at high temperatures. Why?


Write the chemical reactions involved in the extraction of gold by cyanide process. Also give the role of zinc in the extraction.


When a strip of metallic zinc is placed in an aqueous solution of copper nitrate the blue colour of the solution disappear due to formation of


Which of the following is not ore of aluminium?


Which of the following is not an ore of magnesiuim? 


In the extraction of iron, the slag produce is


Which of the following statements, about the advantage of roasting of sulphide ore before reduction is not true?


Pyrolusite is ______.


Match List - I with List - II.

  List - I   List - II
  (One)   (Composition)
(A) Siderite (I) FeCO3
(B) Malachite (II) CuCO3 · Cu(OH)2
(C) Sphalerite (III) ZnS
(D) Calamine (IV) ZnCO3

Choose the correct answer from the options given below:


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×