2. structure of atom — Chemistry STD 11 Science — Question

$(R = 8.314 \,J/mol\,K)\,(\ln 7.5 =2.01)$

$(A)$ $\Delta U = q + p \Delta V$

$(B)$ $\Delta G =\Delta H - T \Delta S$

$(C)$ $\Delta S =\frac{ q _{ rev }}{ T }$

$(D)$ $\Delta H =\Delta U -\Delta nRT$

Choose the most appropriate answer from the options given below :

1. $\text{H}_3\text{C}-\text{C}\equiv\text{C}^-$
2. $\text{H}-\text{C}\equiv\text{C}^-$
3. $\text{H}_3\text{C}-\text{C}{\text{H}}_2^-$

$C{H_2} = C{H_2}\xrightarrow[{oxid}]{{Hypochloro}}$ $M\xrightarrow{R}\begin{array}{*{20}{c}}
  {C{H_2} - OH} \\ 
  {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {C{H_2} - OH} 
\end{array}$

Where $M$ = molecule; $R$ = reagent $M$ and $R$ are