MCQ
Invalid name of given compound
- ✓Allyl cyanide
- BCrotononitrile
- CBut $-2-$ ene nitrile
- DAll of these
$H _3 C - CH = CH - C \equiv N \longrightarrow$ Crotononitrile (common name)
But-$2$-enenitrile (IUPAC Name)
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$2H_2(g) + O_2(g) \to 2H_2O(l)$ ; $\Delta _fH^o_{298}(H_2O(l)) = -285.5\, kJ/mol$
What is $\Delta S^o_{298}$ for the given fuel cell reaction ?
Given $: O_2(g) + 4H^+(aq) + 4e^- \to 2H_2O(l)$ $E^o = 1.23\, V$
Statement $I :$ Bohr's theory accounts for the stability and line spectrum of $Li ^{+}$ ion.
Statement $II :$ Bohr's theory was unable to explain the splitting of spectral lines in the presence of a magnetic field.
In the light of the above statements, choose the most appropriate answer from the options given below:
trans $\left( Ph - CH = CH - CH _3\right) \rightarrow$ cis $\left( Ph - CH = CH - CH _3\right)$