JEE Mains · Chemistry · STD 12 -8.1. Aldehydes and ketones
Which of the following arrangements with respect to their reactivity in nucleophilic addition reaction is correct?
- A acetophenone \( \lt \) benzaldehyde \( \lt \) p-tolualdehyde \( \lt \) p- nitrobenzaldehyde
- B benzaldehyde \( \lt \) acetophenone \( \lt \) p- nitrobenzaldehyde \( \lt \) p-tolualdehyde
- C p- nitrobenzaldehyde \( \lt \) benzaldehyde \( \lt \) p-tolualdehyde \( \lt \) acetophenone
- D acetophenone \( \lt \) p-tolualdehyde \( \lt \) benzaldehyde \( \lt \) p- nitrobenzaldehyde
Answer & Solution
Correct Answer
(D) acetophenone \( \lt \) p-tolualdehyde \( \lt \) benzaldehyde \( \lt \) p- nitrobenzaldehyde
Step-by-step Solution
Detailed explanation
Reactivity \(\propto+\mathrm{ve}\) charge on electrophilic carbon
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
- Which of the following statements is false ?JEE Mains 2015 Hard
- Elements P and Q form two types of non-volatile, non-ionizable compounds PQ and \( PQ_{2} \). When 1 g of PQ is dissolved in 50 g of solvent 'A', \( \Delta T_{b} \) was 1.176 K while when 1 g of \( PQ_{2} \) is dissolved in 50 g of solvent 'A', \( \Delta T_{b} \) was 0.689 K. \( K_{b} \) of 'A' = \( 5 \, K \, kg \, mol^{-1} \). The molar masses of elements P and Q (in \( g \, mol^{-1} \)) respectively, are:JEE Mains 2026 Medium
- The standard electrode potential \(E^-\) and its temperature coefficient \(\left( {\frac{{d{E^ - }}}{{dT}}} \right)\) for a cell are \(2\,V\) and \(-\,5\times10^{-4}\,V\,K^{-1}\) at \(300\,K\) respectively. The cell reaction is \(Zn\left( s \right) + C{u^{2 + }}\left( {aq} \right) \rightleftharpoons Z{n^{2 + }}\left( {aq} \right) + Cu\left( s \right)\) Standard reaction enthalpy \(\left( {{\Delta _r}{H^ - }} \right)\) ....... \(\mathrm{kJ}\)JEE Mains 2019 Hard
- The equilibrium constant for decomposition of \(\mathrm{H}_2 \mathrm{O}(\mathrm{g})\) \(\mathrm{H}_2 \mathrm{O}(\mathrm{~g}) \rightleftharpoons \mathrm{H}_2(\mathrm{~g})+\frac{1}{2} \mathrm{O}_2(\mathrm{~g})\left(\Delta \mathrm{G}^{\circ}=92.34 \mathrm{~kJ} \mathrm{~mol}^{-1}\right)\) is \(8.0 \times 10^{-3}\) at 2300 K and total pressure at equilibrium is 1 bar. Under this condition, the degree of dissociation \((\alpha)\) of water is ________ \(\times 10^{-2}\) (nearest integer value).
[Assume \(\alpha\) is negligible with respect to 1 ]JEE Mains 2025 Medium - Hydrolysis of sucrose gives :JEE Mains 2021 Easy
- The molecular formula of second homologue in the homologous series of mono carboxylic acids is___________.JEE Mains 2024 Hard
More PYQs from JEE Mains
- The mole fraction of a solvent in aqueous solution of a solute is \(0.8\). The molality (in \(mol\, kg^{-1}\)) of the aqueous solution isJEE Mains 2019 Hard
- Let the area of the region \(\left\{(x, y):|2 x-1| \leq y \leq\left|x^2-x\right|, 0 \leq x \leq 1\right\}\) be \(A\). Then \((6 A +11)^2\) is equal to \(.......\).JEE Mains 2023 Hard
- If the shortest distance between the lines \(\frac{x-\lambda}{3}=\frac{y-2}{-1}=\frac{z-1}{1}\) and \(\frac{x+2}{-3}=\frac{y+5}{2}=\frac{z-4}{4}\) is \(\frac{44}{\sqrt{30}}\), then the largest possible value of \(|\lambda|\) is equal to ..........JEE Mains 2024 Hard
- The maximum number of orbitals which can be identified with \(\mathrm{n}=4\) and \(\mathrm{m}_l=0\) is _______.JEE Mains 2024 Medium
- Number of photons of equal energy emitted per second by a 6 mW laser source operating at 663 nm is ___________.
(Given: \(h=6.63\times10^{-34}\) J.s and \(c=3\times10^{8}m/s\))JEE Mains 2026 Hard - The wavelength of electrons accelerated from rest through a potential difference of \(40\, \mathrm{kV}\) is \(\mathrm{X}\, \times\) \(10^{-12} \,\mathrm{~m}\). The value of \(\mathrm{x}\) is \(......\). (Nearest integer) Given : Mass of electrons \(=9.1 \times 10^{-31}\, \mathrm{~kg}\) Charge on an electron \(=1.6 \times 10^{-19}\, \mathrm{C}\) Planck's constant \(=6.63 \times 10^{-34\,} \mathrm{Js}\)JEE Mains 2021 Hard