MCQ
; the best combination of reactants is
- ✓$C_6H_5Br + HNO_3 , H_2SO_4$
- B$C_6H_5Br + H_2SO_4$ , heat
- C$C_6 H_5NO_2 + Br_2, Fe Br_3$
- D$C_6 H_5NO_2 + HBr$
✓
Answer
Correct option: A.
$C_6H_5Br + HNO_3 , H_2SO_4$
a
$(a)$ $-\ddot{\underset{\scriptscriptstyle\centerdot\centerdot}{B}}r:$ is ($o/p$ director)
$(a)$ $-\ddot{\underset{\scriptscriptstyle\centerdot\centerdot}{B}}r:$ is ($o/p$ director)
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
The order of decreasing rate of reaction with ammonia is
$\underset{\raise0.3em\hbox{$\smash{\scriptscriptstyle-}$}}{A} \xrightarrow{{4\,KO{H_1}{O_2}}}\mathop {2\underset{\raise0.3em\hbox{$\smash{\scriptscriptstyle-}$}}{B} }\limits_{(Green)} + 2{H_2}O$
→$3\underset{\raise0.3em\hbox{$\smash{\scriptscriptstyle-}$}}{B} \xrightarrow{{4\,HCl}}\mathop {2C}\limits_{(Purple)} + Mn{O_2} + 2{H_2}O$
$3\underset{\raise0.3em\hbox{$\smash{\scriptscriptstyle-}$}}{C} \xrightarrow{{{H_2}O,KI}}2\underset{\raise0.3em\hbox{$\smash{\scriptscriptstyle-}$}}{A} + 2KOH + \underset{\raise0.3em\hbox{$\smash{\scriptscriptstyle-}$}}{D} $
In the above sequence of reactions, $\underset{\raise0.3em\hbox{$\smash{\scriptscriptstyle-}$}}{A}$ and $\underset{\raise0.3em\hbox{$\smash{\scriptscriptstyle-}$}}{D} $ , respectively are
The total number of unpaired electrons present in the complex $K _{3}\left[ Cr \right.$ (oxalate) $\left._{3}\right]$ is ..........
→The complex with highest magnitude of crystal field splitting energy $\left(\Delta_0\right)$ is
→What is the final product $(B)$ of this sequence
→The molarity of a solution made by mixing $50\,ml$ of conc. ${H_2}S{O_4}$ ($36\,N$) with $ 50\,ml$ of water is ...... $M$.
→An aqueous solution of titanium chloride, when subjected to magnetic measurement, measured zero magnetic moment. Assuming the octahedral complex in aqueous solution, the formulae of the complex is
The maximum carbon-halogen $( C - X )$ bond length compound is :
→Enzymes are
Ozonolysis of a hydrocarbon gives one mole of acetone and one mole of formaldehyde. The hydrocarbon is :