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[" 9.If "(1)/(2)X(2)O(s)rarr X(s)+(1)/(4...

[" 9.If "(1)/(2)X_(2)O(s)rarr X(s)+(1)/(4)O_(2)(g);Delta H=90kJ],[" Then heat change during reaction of metal "X" with "],[" one mole of "O_(2)" to form oxide to maximum extent "],[" is "],[[" (1) "360kJ," (2) "-360kJ],[" (3) "-180kJ,(4)+180kJ]]

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If (1)/(2)X_(2)O_((s)) rarr X_((s))+(1)/(4)O_(2(g)),DeltaH=90kJ then heat change during reaction of metal X with 1 mol e O_(2) to form oxide to maximum extent is :

If (1)/(2)X_(2)O_((s)) rarr X_((s))+(1)/(4)O_(2(g)),DeltaH=90kJ then heat change during reaction of metal X with 1 mol e O_(2) to form oxide to maximum extent is :

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