MCQ
Which of the following pair gives same phenyl osazone ?
- A$D-$ Glucose and $D-$ Allose
- B$D-$ Glucose and $D-$ Alfrose
- ✓$D-$ Glucose and $D-$ Mannose
- D$D-$ Glucose and $D-$ Talose
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$CS_2 + 3O_2 \to 2SO_2 + CO_2$
$C{H_4}(g) + 2{O_2}(g) \to C{O_2}(g) + 2{H_ {2}}O(l);$
$\Delta H = - 890.3\,kJ$
How many grams of methane would be required to produce $445.15\, kJ$ of heat of combustion.....$g$
Benzene $(C_6H_6)$ $+\,C{{H}_{3}}-CH=C{{H}_{2}}\,\xrightarrow{{{H}^{\oplus }}}A\xrightarrow{{{O}_{2}}}B$ $\xrightarrow{{{H}^{\oplus }}\,/\,\Delta }C+$$\begin{matrix}
O \\
|| \\
C{{H}_{3}}-C-C{{H}_{3}} \\
\end{matrix}$
The structure of intermediate compound $'B'$ will be
| Column-$I$ | Column-$II$ |
| $(A)$ $\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_4\left(\mathrm{H}_2 \mathrm{O}\right)_2\right] \mathrm{Cl}_2$ | $(p)$ geometrical isomers |
| $(B)$ $\left[\mathrm{Pt}\left(\mathrm{NH}_3\right)_2 \mathrm{Cl}_2\right]$ | $(q)$ paramagnetic |
| $(C)$ $\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)_5 \mathrm{Cl}\right] \mathrm{Cl}$ | $(r)$ diamagnetic |
| $(D)$ $\left[\mathrm{Ni}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right] \mathrm{Cl}_2$ | $(s)$ metal ion with $+2$ oxidation state |