MCQ
Hess’s law deals with :
- ✓Heat changes in a chemical reaction.
- BRate of reaction
- CEquilibrium constant
- DInfluence of pressure on volume of a gas
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$(i)$ $C{H_3}\mathop {\mathop C\limits_{||} }\limits_O - {O^ - }$ $(ii)$ $C{H_3}{O^ - }$
$(iii)$ $C{N^ - }$ $(iv)$ $Image$
is
$(A)$ $Rb$ and $Cs$
$(B)$ $Na$ and $K$
$(C)$ $Ar$ and $Kr$
$(D)$ $I$ and $At$
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