The enthalpies of elements in their standard states are taken as zero. The enthalpy of formation of a compound
(i) Is always negative
(ii) Is always positive
(iii) May be positive or negative
(iv) Is never negative
The enthalpies of elements in their standard states are taken as zero. The enthalpy of formation of a compound
(i) Is always negative
(ii) Is always positive
(iii) May be positive or negative
(iv) Is never negative
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1 Answer
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This is a Multiple Choice Questions as classified in NCERT Exemplar
option (iii)
The enthalpies of elements in their standard states are taken as zero. The enthalpy of formation of a compound as the reaction could be exothermic or endothermic.
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