JEE Mains · Chemistry · STD 12 - 9. Amines
What is the correct sequence of reagents used for converting nitrobenzene into \(m\) -dibromobenzene?
- A \(\stackrel{ NaNO _{2}}{\longrightarrow} / \stackrel{ HCl}{\longrightarrow} / \stackrel{ KBr}{\longrightarrow} /\stackrel{ H^+}{\longrightarrow}\)
- B \(\stackrel{ Br_2/Fe}{\longrightarrow} / \stackrel{Sn/ HCl}{\longrightarrow} / \stackrel{ NaNO_2/ HCl}{\longrightarrow} /\stackrel{ CuBR/Hbr}{\longrightarrow}\)
- C \(\stackrel{ Sn/ HCl}{\longrightarrow} / \stackrel{KBr}{\longrightarrow} / \stackrel{ Br_2}{\longrightarrow} /\stackrel{ H^+}{\longrightarrow}\)
- D \(\stackrel{ Sn/ HCl}{\longrightarrow} / \stackrel{Br_2}{\longrightarrow} / \stackrel{ NaNO_2}{\longrightarrow} /\stackrel{ NaBR}{\longrightarrow}\)
Answer & Solution
Correct Answer
(B) \(\stackrel{ Br_2/Fe}{\longrightarrow} / \stackrel{Sn/ HCl}{\longrightarrow} / \stackrel{ NaNO_2/ HCl}{\longrightarrow} /\stackrel{ CuBR/Hbr}{\longrightarrow}\)
Step-by-step Solution
Detailed explanation
Correct sequence of reagents for the following conversion.
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- Given are two statements one is labelled as Assertion \(A\) and other is labelled as Reason \(R\). Assertion \(A\) :Magnesium can reduce \(Al _{2} O _{3}\) at a temperature below \(1350^{\circ} C\), while above \(1350^{\circ} C\) aluminium can reduce \(MgO\). Reason \(R\) : The melting and boiling points of magnesium are lower than those of aluminium. In light of the above statements. choose most appropriate answer from the options given belowJEE Mains 2022 Medium
- At constant volume, \(4\; mol\) of an ideal gas when heated from \(300\; \mathrm{K}\) to \(500\; \mathrm{K}\) changes its internal energy by \(5000\; \mathrm{J}\). The molar heat capacity at constant volume is ............... \(\mathrm{J\,mol}^{-1} \, \mathrm{K}^{-1}\)JEE Mains 2020 Hard
- Consider the following plots of log of rate constant \(\mathrm{k}(\log \mathrm{k})\) vs \(\frac{1}{\mathrm{~T}}\) for three different reactions. The correct order of activation energies of these reactions is which?
JEE Mains 2025 Medium - Which of the following acids is a vitamin?JEE Mains 2025 Easy
- Spin only magnetic moment of an octahedral complex of \(\mathrm{Fe}^{2+}\) in the presence of a strong field ligand in \(B.M.\) is \(.....\)JEE Mains 2021 Hard
- \(A ( g ) \rightarrow 2 B ( g )+ C ( g )\) is a first order reaction. The initial pressure of the system was found to be \(800\,mm\,Hg\) which increased to \(1600\,mm\,Hg\) after \(10\,min\). The total pressure of the system after \(30\,min\) will be \(.........\,mm\,Hg\). (Nearest integer)JEE Mains 2023 Medium
More PYQs from JEE Mains
- A bullet of \(10\, {g}\), moving with velocity \(v\), collides head-on with the stationary bob of a pendulum and recoils with velocity \(100 \, {m} / {s}\). The length of the pendulum is \(0.5\, {m}\) and mass of the bob is \(1\, {kg}\). The minimum value of \(v=\) \(....{m} / {s}\) so that the pendulum describes a circle. (Assume the string to be inextensible and \({g}=10\, {m} / {s}^{2}\) )
JEE Mains 2021 Hard - Two long parallel wires \(X\) and \(Y\), separated by a distance of 6 cm , carry currents of 5A and 4A, respectively, in opposite directions as shown in the figure. Magnitude of the resultant magnetic field at point P at a distance of 4 cm from wire Y is \(x \times 10^{-5} \mathrm{~T}\). The value of \(x\) is__________ . Take permeability of free space as \(\mu_0=4 \pi \times 10^{-7} \mathrm{SI}\) units.
JEE Mains 2025 Easy - Let ABC be an equilateral triangle with orthocenter at the origin and the side BC on the line \(x+2\sqrt{2}y=4\). If the co-ordinates of the vertex A are (\(\alpha, \beta\)), then the greatest integer less than or equal to \(|\alpha+\sqrt{2}\beta|\) isJEE Mains 2026 Easy
- Let \(\vec{a}\) and \(\vec{b}\) be two vectors. Let \(|\vec{a}|=1,|\vec{b}|=4\) and \(\vec{a} \cdot \vec{b}=2\). If \(\vec{c}=(2 \vec{a} \times \vec{b})-3 \vec{b}\), then the value of \(\overrightarrow{ b } \cdot \overrightarrow{ c }\) isJEE Mains 2023 Medium
- According to Bohr's model of hydrogen atom, which of the following statement is incorrect?JEE Mains 2025 Easy
- Let the area enclosed by the \(x\)-axis, and the tangent and normal drawn to the curve \(4 x ^{3}-\) \(3 x y^{2}+6 x^{2}-5 x y-8 y^{2}+9 x+14=0\) at the point \((-2,3)\) be \(A\). Then \(8 A\) is equal to \(.......\)JEE Mains 2022 Hard