<span style="font-family: arial;">The method of concentrating the ore which makes use of the difference in density between ore and impurities is called</span>

Chemistry - General Knowledge Questions

The method of concentrating the ore which makes use of the difference in density between ore and impurities is called

liquation

leaching

levigation

magnetic separation

Correct Answer : levigation

Published On : July 3, 2020

Recent Updates in Chemistry - General Knowledge Questions

Q .

Freons cause great environmental damage. They are

Mixed chlorofluoro-hydrocarbons

Mixed sulphur gases

Mixed carbon gases

Free gases

Correct Answer : Mixed chlorofluoro-hydrocarbons

Published On : June 12, 2021

Category : Chemistry

Q .

When ants bite, they inject

Stearic acid

Formic acid

Methanol

Glacial acetic acid

Correct Answer : Formic acid

Published On : June 12, 2021

Category : Chemistry

Q .

The cycling of elements in an ecosystem is called

Chemical cycles

Geological cycles

Geochemical cycles

Biogeochemical cycles

Correct Answer : Biogeochemical cycles

The biogenetic nutrients are essential elements required by organisms for their body-building and metabolism which are provided by earth and returned to earth after the death of organisms and/or through excreta of animals. So, the correct answer is 'Biogeochemical cycle'

Published On : June 12, 2021

Category : Chemistry