MCQ
${C_6}{H_5}Cl$ prepared by aniline with
- A$HCl$
- B$C{u_2}C{l_2}$
- C$C{l_2}$ in presence of anhydrous $AlC{l_3}$
- ✓$HN{O_2}$ and then heated with $C{u_2}C{l_2}$
✓
Answer
Correct option: D.
$HN{O_2}$ and then heated with $C{u_2}C{l_2}$
d
(d)
(d)
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Below conversion can be brought about by ?
What is final product $(IV)$ in the sequence of $\begin{matrix}
C{{H}_{3}}-CH-OH\xrightarrow{PB{{r}_{3}}}I\xrightarrow{Mg/ether} \\
\,\,\,\,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
C{{H}_{3}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
\end{matrix}$ $II\,\xrightarrow{{\begin{array}{*{20}{c}}
{C{H_2} - C{H_2}} \\
\begin{subarray}{l}
\backslash / \\
O
\end{subarray}
\end{array}}}III\,\xrightarrow{{{H_2}O}}IV$
→C{{H}_{3}}-CH-OH\xrightarrow{PB{{r}_{3}}}I\xrightarrow{Mg/ether} \\
\,\,\,\,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
C{{H}_{3}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
\end{matrix}$ $II\,\xrightarrow{{\begin{array}{*{20}{c}}
{C{H_2} - C{H_2}} \\
\begin{subarray}{l}
\backslash / \\
O
\end{subarray}
\end{array}}}III\,\xrightarrow{{{H_2}O}}IV$
Consider the following statements related to temperature dependence of rate constants.
Identify the correct statements,
A. The Arrhenius equation holds true only for an elementary homogenous reaction.
B. The unit of A is same as that of k in Arrhenius equation.
C. At a given temperature, a low activation energy means a fast reaction.
D. A and Ea as used in Arrhenius equation depend on temperature.
E. When Ea >> RT. A and Ea become interdependent.
Choose the correct answer from the options given below :
Identify the correct statements,
A. The Arrhenius equation holds true only for an elementary homogenous reaction.
B. The unit of A is same as that of k in Arrhenius equation.
C. At a given temperature, a low activation energy means a fast reaction.
D. A and Ea as used in Arrhenius equation depend on temperature.
E. When Ea >> RT. A and Ea become interdependent.
Choose the correct answer from the options given below :
The reason for double helical structure of $DNA$ is the operation of
→The pair in which phosphorous atoms have a formal oxidation state of $+ 3$ is :
→In an atom two electrons move around the nucleus in circular orbits of radii $R$ and $4R$ . The ratio of the time taken by them to complete one revolution is
→The colour of $CoC{l_3}.5N{H_3}.{H_2}O$ is
→Which of the following statements about proteins is not true
In case of nitrogen, $NC{l_3}$ is possible but not $NC{l_5}$ while in case of phosphorous, $PC{l_3}$ as well as $PC{l_5}$ are possible. It is due to
→Match list $- I$ and List $- II.$
→| List $-I$ | List $-II$ | ||
|
$(a)$ |
$\begin{array}{*{20}{c}} {O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ {||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ {R - C - Cl \to R - CHO} \end{array}$ |
$(i)$ |
$Br _{2} / NaOH$ |
| $(b)$ | $\begin{array}{*{20}{c}} {R - C{H_2} - COOH \to R - CH - COOH} \\ {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|} \\ {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,Cl} \end{array}$ |
$(ii)$ | $H _{2} / Pd - BaSO _{4}$ |
| $(c)$ | $\begin{array}{*{20}{c}} {O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ {||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ {R - C - N{H_2} \to R - N{H_2}} \end{array}$ |
$(iii)$ | $Zn ( Hg ) /$ Conc. $HCl$ |
| $(d)$ | $\begin{array}{*{20}{c}} {O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ {||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ {R - C - C{H_3} \to R - C{H_2} - C{H_3}} \end{array}$ |
$(iv)$ | $Cl _{2}$ / Red $P , H _{2} O$ |
Choose the correct answer from the options given below: