Which of the following is a redox reaction? - Vidyadip

MCQ

Which of the following is a redox reaction?

A
$\ce{MgCO3 -> MgO + CO2}$
✓
$\ce{Zn + 2HCl -> ZnCl2 + H2}$
C
$\ce{NaCl + KNO3 -> NaNO3 + KCl}$
D
$\ce{CaC2O4 + 2HCl -> CaCl2 + H2C2O4}$

✓

Answer

Correct option: B.

$\ce{Zn + 2HCl -> ZnCl2 + H2}$

B

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