Which of these is Not a separation technique ?

Explanation:

Distillation ; is used to separate solvent from its solution

Filtration ; is used to separate solid particle from a liquid

Evaporation is used to separate soluble solid from a solution

the answer to your question is c.

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conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.