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Hydraulic Washing

Gravity separ...

Question

Gravity separation is also called ___ .

A

levitation

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B

levigation

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C

magnetic seperation

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D

distillation

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Solution

The correct option is B levigation
Gravity separation is also called levigation or hydraulic washing. Here, the lighter gangue particles are removed from heavier ore particles by washing in a water current. It is mainly used for oxide ores and carbonate ores based on their difference in densities of the ore particles and impurities.

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Similar questions

Q. The force of attraction between two unit point masses separated by a unit distance is called :

(a) gravitational potential
(b) acceleration due to gravity
(c) gravitational field strength
(d) universal gravitational constant

Q. Gravity separation is also called ___ .

Q. Magnetic ores can be easily separated by gravity separation method.

Petroleum is also called ________oil. It is a mixture of various fuels which are separated by a process called _________.

	Column - I		Column - II
X.	Magnetic separation	A.	$A g_{2} S$
Y.	Forth Flotation	B.	$F e C r_{2} O_{4}$
Z.	Gravity separation	C.	$A l_{2} (S i O_{3})_{3}$

Match the method of concentration of the ore in column I with the ore in column II and select the correct alternate :

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