A redox reaction is a reaction that involves both reduction and oxidation, it involves a reducing agent which looses electrons and undergoes oxidation and an oxidizing agent that gains electrons (reduction). I believe the following are true about redox reactions; Electrons move from one substance to another, One atom gains electrons and one looses electrons.
These substances can be separated by distillation, so your answer is A.
It's a mixture of H2O + a soluble substance like, salt.
Well u said ignoring not me