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Chemistry · PYQ NEET UG 2024

हिन्दी

Which reaction is NOT a redox reaction?

  1. \( H_2 + Cl_2 \rightarrow 2\text{ HCl} \)
  2. \( BaCl_2 + Na_2SO_4 \rightarrow BaSO_4 + 2\text{ NaCl} \)
  3. \( Zn + CuSO_4 \rightarrow ZnSO_4 + Cu \)
  4. \( 2\text{ KClO}_3 + I_2 \rightarrow 2\text{ KIO}_3 + Cl_2 \)

Correct answer · Option 2

\( BaCl_2 + Na_2SO_4 \rightarrow BaSO_4 + 2\text{ NaCl} \)

Explanation

The reaction \( BaCl_2 + Na_2SO_4 \rightarrow BaSO_4 + 2\text{ NaCl} \) is a double displacement precipitation reaction where no element changes its oxidation state, hence it is not a redox reaction.
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