Question

Statement-1 Levigation is used for the separation of oxide
ores from impurities.
Statement-2 Ore particles are removed by washing in a
current of water.

Answer 1

Statement 1 and Statement 2 are true. the statements are used in the Levigation process.

Explanation:

Levigation

• Both the statements are true.
• The statements are from the metallurgical process.
• Concentration of ore is the physical process which gives the statement of Levigation or hydraulic washing.
• The particles of lighter gangue is removed by the particles of heavier ore in a current of water by washing.
• This process is distinguish between the metal and gangue.
• Gravity separation is the principle in which both are separated.
• The mixture of crushed ore and an upward stream of flowing water.
• The gangues lighter particles wash away from the flowing water.
• The metal particle which s heavy will settle down and can be separated.  

To learn more;

1. https://brainly.in/question/7361410
2. https://brainly.in/question/14894216

Answer 2

The statement 1 is true but reason is false.

Explanation:

Statement-1 Levigation is used for the separation of oxide  ores from impurities.

Statement-2 Ore particles are removed by washing in a  current of water.

• Both assertions are true, but reason is false.
• Oxide ores being heavier than the earthy or rocky gangue particles.
• Therefore Settle down while lighter impurities are washed away.

Thus the statement 1 is true but reason is false.

Also learn more

What is difference between ores and minerals  ?

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