हिंदी

Cassiterite is a copper ore.

Advertisements
Advertisements

प्रश्न

Cassiterite is a copper ore.

विकल्प

  • Right

  • Wrong

MCQ
सत्य या असत्य
Advertisements

उत्तर

Cassiterite is a copper ore- Wrong

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 8: Metallugy - Right or Wrong sentence

संबंधित प्रश्न

Why are alkali metals kept in kerosene oil?


Metal A has an electronic configuration of 2, 8, 1 and metal B has 2, 8, 8, 2 which is more reactive metal.

Identify A and B and give their reactions with dil HCL and dil H2SO4 ?


Metal A has an electronic configuration of 2, 8, 1 and metal B has 2, 8, 8, 2 which is more reactive metal.

Give the effect of heat on their ?
oxides


Name:
(a) the processes involved in
concentration :-


Explain the following term:

Gangue


Name the methods used for purification?


`2Cu_2O +Cu_2S` ......................


Why is flux used in the blast furnace?


What is magnalium? Name the main elements present in it? Write its one use ?


Explain with reason:

Why is powdered coke sprinkled on top of the electrolyte?


The following is a sketch of an electrolytic cell used in the extraction of aluminium :

(a) What is the substance of which the electrode A and B are made?
(b) At which electrode (A or B) is aluminium formed?
(c) What are the two aluminium compounds in the electrolyte C?
(d) Why is it necessary for electrode B to be continuously replaced?


Write the molecular formulae of the following compound.

Ferrous tungstate


Draw a neat and labelled diagram for Froth Floatation Process.


Explain concept with example/explain with the help of a balanced equation.

Gangue


Complete flow chart given below.


Chemical formula of rust is ______


Zirconium is refined by ____________.


Which of the following methods is used to separate wolframite and stannic oxide present in cassiterite?


Calcination is used in metallurgy for the removal of?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×