STD 11 - 8.2 Organic chemistry isomerism — NEET STD 11 Science — Question

$(A)$ Internal energy $(B)$ Irreversible expansion work

$(C)$ Reversible expansion work $(D)$ Molar enthalpy

for the above reaction at $298 K , K _{ c }$ is found to be $3.0 \times 10^{-59}$. If the concentration of $O _{2}$ at equilibrium is $0.040 M$ then concentration of $O _{3}$ in $M$ is ...... .

$\mathrm{NaOH}+\mathrm{Cl}_{2} \rightarrow(\mathrm{A})+$ side products

(hot and conc.)

$\mathrm{Ca}(\mathrm{OH})_{2}+\mathrm{Cl}_{2} \rightarrow(\mathrm{B})+$ side products

$(dry)$

Statement $I$: The boiling point of hydrides of Group $16$ elements follow the order

$\mathrm{H}_2 \mathrm{O}>\mathrm{H}_2 \mathrm{Te}>\mathrm{H}_2 \mathrm{Se}>\mathrm{H}_2 \mathrm{~S}$.

Statement $II$: On the basis of molecular mass, $\mathrm{H}_2 \mathrm{O}$ is expected to have lower boiling point than the othe members of the group but due to the presence of extensive $\mathrm{H}$-bonding in $\mathrm{H}_2 \mathrm{O}$, it has higher boiling point.

In the light of the above statements, choose the correct answer from the options given below:

Choose the correct answer form the options given below :

$(A)$ $\begin{matrix}
   O\,\,\,\,\,\,\,\,\,\,  \\
   ||\,\,\,\,\,\,\,\,\,\,\,\,  \\
   R-C-NHBr  \\
\end{matrix}$               $(B)$ $R-NH-Br$

$(C)$ $R-N=C=O$                $(D)$ $\begin{matrix}
   \,\,\,\,O\,\,\,\,\,\,\,\,\,\,  \\
   \,\,\,\,\,\,||\,\,\,\,\,\,\,\,\,\,\,\,  \\
   R-C-NB{{r}_{2}}  \\
\end{matrix}$