Read the given passage and answer the questions number 1 to 5 that follow : Froth floatation method is used for removing gangue from sulphide ores. In this process, a suspension of the powdered ore is made with water. Collectors and froth stabilisers are added to it. Collectors (for examples, pine oils, fatty acids, xanthates etc.) enhance non-wettability of the mineral particles by water and froth stabilisers (for example, cresols, aniline) stabilise the froth. The mineral particles become wet by oil while the gangue particle by water. A rotating paddle agitates the mixture and draws air in it. As a result, froth is formed which carries the mineral particles. The froth is light and is skimmed off. It is then dried for recovery of ore particles. What is the principle of froth floatation method?

Read the given passage and answer the questions number 1 to 5 that fol

1.	Read the given passage and answer the questions number 1 to 5 that follow : Froth floatation method is used for removing gangue from sulphide ores. In this process, a suspension of the powdered ore is made with water. Collectors and froth stabilisers are added to it. Collectors (for examples, pine oils, fatty acids, xanthates etc.) enhance non-wettability of the mineral particles by water and froth stabilisers (for example, cresols, aniline) stabilise the froth. The mineral particles become wet by oil while the gangue particle by water. A rotating paddle agitates the mixture and draws air in it. As a result, froth is formed which carries the mineral particles. The froth is light and is skimmed off. It is then dried for recovery of ore particles. What is the principle of froth floatation method?
Answer» Solution :In the ore there are two components, the MINERAL particles and the impurities. Mineral particles are WETTED with the HELP of collections. Impurities are not wetted with the oil and REMAIN at the bottom.