The molecule that functions as the reducing agent (electron donor) in a redox or oxidation-reduction reaction .

state the principle of separating two immiscible liquids by separating funnel. describe an activity with diagram to separate a mixture of water and kerosene oil. answer: immiscible layers separate out in layers depending on their densities in separating funne

the answer to your question is c.

if you read the house of usher you should know that the house was haunted