JEE Mains · Chemistry · STD 11 - 9. Hydricarbon
Given below are two statements :
Statement \(I\): Nitration of benzene involves the following step -

Statement \(II\): Use of Lewis base promotes the electrophilic substitution of benzene.
In the light of the above statements, choose the most appropriate answer from the options given below:
- A Both Statement \(I\) and Statement \(II\) are incorrect
- B Statement \(I\) is correct but Statement \(II\) is incorrect
- C Both Statement \(I\) and Statement \(II\) are correct
- D Statement \(I\) is incorrect but Statement \(II\) is correct
Answer & Solution
Correct Answer
(B) Statement \(I\) is correct but Statement \(II\) is incorrect
Step-by-step Solution
Detailed explanation
In nitration of benzene concentrated \(\mathrm{H}_2 \mathrm{SO}_4\) and \(\mathrm{HNO}_3\) is used as reagent which generates electrophile \(\mathrm{NO}_2\) in following steps: Lewis acids can promote the formation of electrophiles not Lewis base
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
- The electrolytes usually used in the electroplating of gold and silver, respectively, areJEE Mains 2019 Easy
- The standard reaction Gibbs energy for a chemical reaction at an absolute temperature \(T\) is given by \({\Delta _r}{G^o} = A - BT\) Where \(A\) and \(B\) are non -zero constant. Which of the following is \(TRUE\) about this reaction?JEE Mains 2019 Medium
- Given below are two statements : Statement\(-I :\, 2 -\)methylbutane on oxidation with \(KMnO _{4}\) gives \(2 -\)methylbutan\(-2-\)ol. Statement\(-II :\) \(n-\)alkanes can be easily oxidised to corresponding alcohol with \(KMnO _{4}\). Choose the correct option:JEE Mains 2021 Medium
- Of the following four aqueous solutions, total number of those solutions whose freezing point is lower than that of \(0.10\, \mathrm{M} \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}\) is (Integer answer) \((i)\) \(0.10\, \mathrm{M} \,\mathrm{Ba}_{3}\left(\mathrm{PO}_{4}\right)_{2}\) \((ii)\) \(0.10\, \mathrm{M}\, \mathrm{Na}_{2} \mathrm{SO}_{4}\) \((iii)\) \(0.10\, \mathrm{M}\, \mathrm{KCl}\) \((iv)\) \(0.10 \,\mathrm{M} \,\mathrm{Li}_{3} \mathrm{PO}_{4}\)JEE Mains 2021 Medium
- According to molecular orbital theory, which of the following is true with respect to \(Li_2^ + \) and \(Li_2^ - \) ?JEE Mains 2019 Medium
- The increasing order of \(pKa\) of following amino acids in aqueous solution is \(Gly, \,Asp,\, Lys,\, Arg\)JEE Mains 2019 Hard
More PYQs from JEE Mains
- A straight line \(L\) at a distance of \(4\) units from the origin makes positive intercepts on the coordinate axes and the perpendicular from the origin to this line makes an angle of \(60^o\) with the line \(x + y = 0\). Then an equation of the line \(L\) isJEE Mains 2019 Hard
- A wire of length \(L\, (=20\, cm)\), is bent into a semicircular arc. If the two equal halves of the arc were each to be uniformly charged with charges \( \pm Q\,,\,\left[ {\left| Q \right| = {{10}^3}{\varepsilon _0}} \right]\) Coulomb where \(\varepsilon _0\) is the permittivity (in \(SI\, units\)) of free space] the net electric field at the centre \(O\) of the semicircular arc would be
JEE Mains 2015 Hard - A trisubstituted compound ' \(A\) ', \(C _{10} H _{12} O _2\) gives neutral \(FeCl _3\) test positive. Treatment of compound ' \(A\) ' with \(NaOH\) and \(CH _3 Br\) gives \(C _{11} H _{14} O _2\), with hydroiodic acid gives methyl iodide and with hot conc. \(NaOH\) gives a compound B, \(C _{10} H _{12} O _2\). Compound 'A' also decolorises alkaline \(KMnO _4\). The number of \(\pi\) bond/s present in the compound ' \(A\) ' is \(...........\)JEE Mains 2023 Hard
- Let the sum of two positive integers be \(24\) . If the probability, that their product is not less than \(\frac{3}{4}\) times their greatest positive product, is \(\frac{\mathrm{m}}{\mathrm{n}}\), where \(\operatorname{gcd}(\mathrm{m}, \mathrm{n})=1\), then \(\mathrm{n}-\mathrm{m}\) equals :JEE Mains 2024 Hard
- In allene \((C_3H_4)\), the type of hybridization of the carbon atoms is (are)JEE Mains 2014 Hard
- If \(y(x)=\cot ^{-1}\left(\frac{\sqrt{1+\sin x}+\sqrt{1-\sin x}}{\sqrt{1+\sin x}-\sqrt{1-\sin x}}\right), x \in\left(\frac{\pi}{2}, \pi\right)\) then \(\frac{d y}{d x}\) at \(x=\frac{5 \pi}{6}\) is:JEE Mains 2021 Hard