MCQ
Hydrogen bond energy is equal to
- A$3 -7$ $cals$
- B$30 -70\, cals$
- ✓$3 -10\, k\,cals$
- D$30 -70\, k\,cals$
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$IUPAC$ name of Compound $A$ is $4-$ chloro-$1$, $3$-dinitrobenzene:
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$IUPAC$ name of Compound $B$ is
$4$-ethyl-$2$-methylaniline.
In the light of the above statements, choose the most appropriate answer from the options given below:
$\Delta {H^o}\, = \, +234.1\,\,kJ$
$C(s)\, + {O_2}(g)\, \to \,\,C{O_2}(g)$
Use these equation and $\Delta H^o$ value to calculate $\Delta H^o$ for this reaction:
$4Fe(s) + 3O_2(g) \to 2Fe_2O_3(s)$
.....$kJ$