- ✓One $C,\,\,O$ single bond and one $C,\,\,O$ double bond
- BTwo $C,\,\,O$ single bonds
- CTwo $C,\,\,O$ double bonds
- DNone of the above

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Statement $(I)$ : Kjeldahl method is applicable to estimate nitrogen in pyridine.
Statement $(II)$ : The nitrogen present in pyridine can easily be converted into ammonium sulphate in Kjeldahl method.
In the light of the above statements, choose the correct answer from the options given below.
As the $s-$ character of a hybrid orbital decreases
$(I)$ The bond angle decreases $(II)$ The bond strength increases
$(III)$ The bond length increases $(IV)$ Size of orbitals increases
For the given reaction, if the initial pressure is $450\,mm Hg$ and the pressure at time $t$ is $720\,mm\,Hg$ at a constant temperature $T$ and constant volume $V$. The fraction of $A ( g )$ decomposed under these conditions is $x \times 10^{-1}$. The value of $x$ is $......$.(nearest integer)