The IUPAC name of (figure) is

$\begin{array}{*{20}{c}}
{C{H_3} - CH - CH = C{H_3}} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{C{H_3}\,\,\,\,\,\,\,\,\,\,\,\,}
\end{array}\xrightarrow{{HBr}}A$

$\begin{array}{*{20}{c}}
{C{H_3} - CH - CH = C{H_3}} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{C{H_3}\,\,\,\,\,\,\,\,\,\,\,\,}
\end{array}\xrightarrow{{HBr + ROOR}}B$

$\begin{array}{*{20}{c}}
{C{H_3} - CH - CH = C{H_3}} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{C{H_3}\,\,\,\,\,\,\,\,\,\,\,\,}
\end{array}\xrightarrow{{NBS}}C$

→

$pH$ of a mixture which is $0.1$ $M$ in $CH_3COOH$ and $0.05$ $M$ in $(CH_3COO)_2Ba$ is [$pK_a$ of $CH_3COOH$ = $4.74$]

→

On bombarding a beam of a $-$ particles on the atom of the gold sheet, a few particles get deflected whereas most of them go straight and remains undeflected. This is due to :

→

$2 \mathrm{MnO}_4^{-}+\mathrm{bI}^{-}+\mathrm{cH}_2 \mathrm{O} \rightarrow \mathrm{xI}_2+\mathrm{yMnO}_2+\mathrm{zOH}^{-}$

If the above equation is balanced with integer coefficients, the value of $z$ is____

→

Molar heat of vaporisation of a liquid is $6\,kJ\,mo{l^{ - 1}}$. If the entropy change is $16\,J\,mo{l^{ - 1}}\,{K^{ - 1}}$, the boiling point of the liquid is

→

Hybridisation states of $C$ in $CH_3^+$ and $CH_4$ are

→