which of the following is not an oxidation - reduction reaction?\nxef₆(s)→xef₄(s)+f₂(g)\n2cs(s)+i₂(g)→2csi(s)…

which of the following is not an oxidation - reduction reaction?\nxef₆(s)→xef₄(s)+f₂(g)\n2cs(s)+i₂(g)→2csi(s)\n2h₂so₄(aq)+2ba(oh)₂(aq)→2baso₄(s)+4h₂o(l)\nzn(s)+2agno₃(aq)→zn(no₃)₂(aq)+ag(s)

which of the following is not an oxidation - reduction reaction?\nxef₆(s)→xef₄(s)+f₂(g)\n2cs(s)+i₂(g)→2csi(s)\n2h₂so₄(aq)+2ba(oh)₂(aq)→2baso₄(s)+4h₂o(l)\nzn(s)+2agno₃(aq)→zn(no₃)₂(aq)+ag(s)

Answer

Answer:

$2H_2SO_4(aq)+2Ba(OH)_2(aq)\longrightarrow 2BaSO_4(s)+4H_2O(l)$

Explanation:

Step1: Define redox reaction

Redox reaction has change in oxidation - states.

Step2: Analyze first reaction

In $XeF_6(s)\longrightarrow XeF_4(s)+F_2(g)$, $Xe$ changes from +6 to +4 and $F$ changes from - 1 to 0. It is redox.

Step3: Analyze second reaction

In $2Cs(s)+I_2(g)\longrightarrow 2CsI(s)$, $Cs$ changes from 0 to +1 and $I$ changes from 0 to -1. It is redox.

Step4: Analyze third reaction

In $2H_2SO_4(aq)+2Ba(OH)_2(aq)\longrightarrow 2BaSO_4(s)+4H_2O(l)$, it is a double - displacement reaction. Oxidation states of $H$, $S$, $O$, $Ba$ remain the same throughout. It is not redox.

Step5: Analyze fourth reaction

In $Zn(s)+2AgNO_3(aq)\longrightarrow Zn(NO_3)_2(aq)+2Ag(s)$, $Zn$ changes from 0 to +2 and $Ag$ changes from +1 to 0. It is redox.