Question:

Which of the following reactions is a redox reaction? ?

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a. NaOH + HCl NaCl + H2O

b. Pb2+ + 2Cl- PbCl2

c. AgNO3 + HCl HNO3 + AgCl

d. 2Al + 3Cl2 2AlCl3

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2 ANSWERS


  1. C


  2. D is the redox.  Both Al and Cl have changed oxidation states.

    Al from 0 to +3, Cl from 0 to -1

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