Home
Class 12
CHEMISTRY
The process of removing light gangue par...

The process of removing light gangue particles by washing in a current of water is called

A

levigation

B

gravity separation

C

hydraulic washing

D

all of these

Text Solution

Verified by Experts

The correct Answer is:
d
The method of levigation or hydraulic washing is based on the difference in specifigravites (or densities )of the ore and a grangue particles it is also no as gravity sepration method .
In one of the adaptations , the powdered ore is washed with an upward stream of running water when the lighter gangue particles are washed away while the hahiar ore particles (cuncentrate from) are left behind .
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • GENERAL PRINCIPALS AND ISOLATION OF ELEMENTS

    R SHARMA|Exercise Flow up (Test - 3)|7 Videos

  • GENERAL PRINCIPALS AND ISOLATION OF ELEMENTS

    R SHARMA|Exercise Flow up (Test - 4)|18 Videos

  • GENERAL PRINCIPALS AND ISOLATION OF ELEMENTS

    R SHARMA|Exercise Arechives|16 Videos

  • ELECTROCHEMISTRY

    R SHARMA|Exercise Follow-up Test 11|7 Videos

  • NEET PREVIOUS PAPER

    R SHARMA|Exercise Solved Question|51 Videos

Similar Questions

Explore conceptually related problems

The process of changing water vapour into water is called ____

The process by which ligher earthly particles are made free from heavier particles by washing with water is called

Knowledge Check

  • The process of removing lighter gangue particles by washing in a current of water is called

    A
    levigation
    B
    liquation
    C
    leaching
    D
    cupellation.

  • The process of removing lighter gangue particles by washing in a current if water is called:

    A
    levigation
    B
    liquation
    C
    leaching
    D
    cupellation

  • The process of removing salt from sea water is called

    A
    Desalination
    B
    Dehydration
    C
    Decantation
    D
    Re-hydration

    • Similar Questions

    Explore conceptually related problems

    The process of removal of gangue form ore is known as _____.

    The process of removing seed from cotton is called ginning.

    The process of nutrient enrichment of water is called as

    The ore mined from the earth contains some unwanted substances called gangue. Enrichment of ore is done by various methods depending upon the nature of the impurities. Hydraulic washing is the process based on the difference in densities of ore and gangue particles. Froth floatation method is used for ores with different wetting properties of ore and gangue particles. On adding sulphide ore in a mixture of oil and water, the sulphide particles are wetted by oil and gangue particles are wetted by water. On passing air in this mixture, sulphide ore particles form light oily froth and reach the surface whereas gangue particles settle down at the bottom. Few ores are enriched by chemical processes. The process in which lighter earthy particles are removed by jet of water is called

    The process of conversion of water vapours into water is called

    Home
    Profile