AIEEE 2002 Chemistry Solved Paper

Section: Chemistry

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Question : 42 of 76

Marks: +1, -0

Which of the following is a redox reaction?

[AIEEE 2002]

NaCl+KNO3→NaNO3+KCl
CaC2O4+2‌HCl→CaCl2+H2C2O4
Mg(OH)2+2NH4‌Cl→MgCl2+2NH4‌OH
Zn+2‌AgCN→2‌Ag+Zn(CN)2

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