मराठी
महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता १० वी

The chemical formula of zinc blend is _______.

Advertisements
Advertisements

प्रश्न

The chemical formula of zinc blend is _______.

पर्याय

  • ZnSO4

  • ZnS

  • ZnCO3

  • ZnO

MCQ
रिकाम्या जागा भरा
Advertisements

उत्तर

The chemical formula of zinc blend is ZnS.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 8: Metallugy - Choose the correct option. [पृष्ठ ८]

संबंधित प्रश्‍न

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: hydroxide


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

Give the effect of heat on their: carbonates


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

Give the effect of heat on their: nitrates


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


Explain the following term:

Gangue


An ore on being heated in air forms sulphurous anhydride. Write the process used for the concentration of this ore.


With a labelled diagram, explain the electro-refining of a particular metal.


Where are the cathode and anode in the electrolytic cell? Name the material used for these?


Name a metal which forms a liquid alloy at ordinary temperature.


Arrange the metals in (2) in the decreasing order of reactivity.


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?


In Wilfley table method to separate particles of gangue _______ method is used.


Right or wrong sentence.

Cassiterite is a copper metal.


Write the molecular formulae of the following compound.

Ferrous tungstate


Distinguish between:

Froth floatation - Leaching


Explain the froth floatation method with a neat labelled diagram.


The chemical name of rust is ______.


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


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×