Strongest reducing agent among the halogens is:
Correct answer: D. I2
- A. Cl2
- B. F2
- C. Br2
- D. I2
Explanation
A reducing agent is a substance that causes another substance to be reduced in a chemical reaction. In the halogen group, reducing strength increases as you move down the group. Iodine (I2) is the strongest reducing agent among the halogens because it is the largest and least electronegative halogen. This means that it is more likely to gain electrons and undergo reduction in a chemical reaction. Therefore, option d is correct.
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About Oxidation and Reduction
Oxidation involves loss of electrons, increase in oxidation number or addition of oxygen, while reduction involves electron gain, decrease in oxidation number or removal of oxygen. The topic covers oxidising and reducing agents, oxidation-number changes, redox equations and the distinction between oxidation at the anode and reduction at the cathode.
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