What is a good reducing agent? A. A substance that is good at oxidizing another atom

B. A substance that is good at reducing another atom

C. A substance that is a good electron acceptor

D. A substance that is easily reduced in a reaction

B. A substance that is good at reducing another atom

Explanation:

Reducing agents:

Reducing agents reduced the other element are it self gets oxidized.  They have very low ionization energy and easily lose the electron.

Consider the following reactions.

4KI + 2CuCl₂  →   2CuI  + I₂  + 4KCl

the oxidation state of copper is changed from +2 to +1 so copper get reduced.  It means it gain one more electron.

CO + H₂O   →  CO₂ + H₂

the oxidation state of carbon is +2 on reactant  side and on product side it becomes  +4 so carbon get oxidized.  Carbon loses it two more electron and act as reducing agent.

Oxidizing agents:

Oxidizing agents oxidize the other elements and itself gets reduced.

Oxidation:

Oxidation involve the removal of electrons and oxidation state of atom of an element is increased.

Reduction:

Reduction involve the gain of electron and oxidation number is decreased.

pla·gia·rism

/ˈplājəˌrizəm/

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noun

the practice of taking someone else's work or ideas and passing them off as one's own.

explanation:

c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current