MCQ
Enthalpy change for reaction, $\frac{1}{2}{H_2} + \frac{1}{2}C{l_2} \to HCl$, is called
- AEnthalpy of combination
- BEnthalpy of reaction
- ✓Enthalpy of formation
- DEnthalpy of fusion
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Statement $I :$ In 'Lassaigne's Test, when both nitrogen and sulphur are present in an organic compound, sodium thiocyanate is formed.
Statement $II :$ If both nitrogen and sulphur are present in an organic compound, then the excess of sodium used in sodium fusion will decompose the sodium thiocyanate formed to give $NaCN$ and $Na _{2} S$.
In the light of the above statements, choose the most appropriate answer from the options given below...
