Q1: Pine oil used in froth floatation technique acts as a/an

ANS:C - frother

Pine oil used in froth flotation technique acts as a frother.

Explanation:

• Froth Flotation Technique: Froth flotation is a widely used method for separating valuable minerals from ore. It relies on the differences in hydrophobicity (ability to repel water) between minerals.
• Role of Pine Oil: Pine oil, or pine essential oil, is commonly used as a frother in froth flotation processes. Its main function is to create and stabilize a froth layer on the surface of the flotation cell to enhance the separation of hydrophobic mineral particles from hydrophilic ones.
• Other Reagents:
  • Collector: A collector is a chemical agent added to enhance the attachment of hydrophobic particles to air bubbles, aiding in their recovery.
  • Modifier: Modifiers are chemicals that alter the surface properties of minerals to improve flotation efficiency.
  • Activator: Activators are used to enhance the reactivity of certain minerals, making them more responsive to flotation reagents.