Which of the following is a carbohydrate

$\begin{array}{*{20}{c}}
{\,\,\,\,\,\,\,\,\,\,\,C{H_3}}\\
{\,\,\,|\,\,}\\
{C{H_3} - C{H_2} - CH - C - N{H_2}}\\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,||}\\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,O\,\,\,}
\end{array}$ $\xrightarrow[\Delta ]{{B{r_2}/KOH}}\left( A \right)\xrightarrow{\begin{subarray}{l}
(1)\,\,C{H_3}I\,{\text{(excess)}} \\
(2)\,AgOH/\Delta \,
\end{subarray} }$ $(B)$

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In the cumene to phenol preparation in presence of air, the intermediate is

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Which of the following reagents will produce salicyldehyde on reaction with phenol

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Which of the following has lowest freezing point

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Which one of the following on heating gives unsaturated acid :

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$\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}$ and $\left[\mathrm{CoF}_6\right]^{3-}$ are respectively known as:

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Give the correct order of electrical conductivity of aqueous solution of following complexes
$(A) [Pt(NH_3)_6]Cl_4$ $(B)\,\,[Cr(NH_3)_6]Cl_3$
$(C)\,\, [Co(NH_3)_4Cl_2]Cl$ $(D)\,\,K_2[PtCl_6]$