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Chemistry
Which of the following reactions is a redox reaction?
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Q. Which of the following reactions is a redox reaction?
UP CPMT
UP CPMT 2004
A
$CaCO_{3} + 2HCI \to CaCl_{2}+H_{2}O+CO_{2}$
B
$AgNO_{3} + KI \to Agl + KNO_{3}$
C
$Cl_{2}+2Br^{-} \to Br_{2}+2Cl^{-}$
D
$BaCI_{2} + SO_{4}^{2-}\to BaSO_{4}+2Cl^{-}$
Solution:
Correct answer is (c) $Cl_{2}+2Br^{-} \to Br_{2}+2Cl^{-}$