JEE Mains · Chemistry · STD 12 - 8.2 Carboxylic acids and their derivative

The correct sequence of reagents for the conversion of X to Y is :
- A (i) NaOH (aq) (ii) Jones reagent (iii) \(H_{3}O^{+}\)
- B (i) \(B_{2}H_{6}/H_{2}O_{2}\) (ii) NaOEt (iii) Jones reagent
- C (i) Jones reagent (ii) NaOEt (iii) Hot \(KMnO_{4}/KOH\)
- D (i) NaOEt (ii) \(B_{2}H_{6}/H_{2}O_{2}\) (iii) Jones reagent
Answer & Solution
Correct Answer
(D) (i) NaOEt (ii) \(B_{2}H_{6}/H_{2}O_{2}\) (iii) Jones reagent
Step-by-step Solution
Detailed explanation
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
- \( \wedge _m^o\) for \(NaCl,\,HCl\) and \(NaA\) are \(126.4,\,425.9\) and \(100.5\,\,S\,cm^2\,mol^{-1},\) respectively. If the conductivity of \(0.001\,M\,HA\) is \(5\times 10^{-5}\,S\,cm^{-1},\) degree of dissociation of \(HA\) isJEE Mains 2019 Hard
- Consider the following two half-cell reactions along with the standard reduction potential given:
\(CO_2 + 6H^+ + 6e^- \rightarrow CH_3 OH + H_2 O \quad E°_{red} = 0.02\) V
\(\dfrac{1}{2} O_2 + 2H^+ + 2e^- \rightarrow H_2 O \quad E°_{red} = 1.23\) V
A fuel cell was set up using the above two reactions such that the cell operates under the standard condition of \(1\) bar pressure and \(298\) K temperature. The fuel cell works with \(80\%\) efficiency. If the work derived from the cell using \(1\) mol of \(CH_3 OH\) is used to compress an ideal gas isothermally against a constant pressure of \(1\) kPa, then the change in the volume of the gas, \(\Delta V = \) _____ m\(^3\). (nearest integer)
Given: \(F = 96500\) C mol\(^{-1}\)JEE Mains 2026 Hard - The difference in the reaction of phenol with bromine in chloroform and bromine in water medium is due to.JEE Mains 2022 Medium
- Liquid \(‘M’\) and liquid \(‘N’\) form an ideal solution. The vapour pressures of pure liquids \(‘M’\) and \(‘N’\) are \(450\) and \(700\,mmHg,\) respectively at the same temperature. Then correct statement is:
( \(x_M =\) mole fraction of \(‘M’\) in solution; \(x_N =\) mole fraction of \(‘N’\) in solution;
\(y_M =\) mole fraction of \(‘M’\) in vapour phase; \(y_N =\) mole fraction of \(‘M’\) in vapour phase)JEE Mains 2019 Hard - \(A + 2B \rightarrow AB_{2}\).
36.0 g of 'A' (Molar mass: \(60~g~mol^{-1}\)) and 56.0 g of 'B' (Molar mass: \(80~g~mol^{-1}\)) are allowed to react. Which of the following statements are correct?
(A) 'A' is the limiting reagent
(B) 77.0 g of \(AB_{2}\) is formed
(C) Molar mass of \(AB_{2}\) is \(140~g~mol^{-1}\)
(D) 15.0 g of A is left unreacted after the completion of reaction.
Choose the correct answer from the options given below :JEE Mains 2026 Hard - Based on the data given below :
\(\begin{array}{ll}\mathrm{E}_{\mathrm{Cr}_2 \mathrm{O}_7^{2-} / \mathrm{Cr}^{3+}}^{\circ}=1.33 \mathrm{~V} & \mathrm{E}_{\mathrm{Cl}_2 / \mathrm{Cl}^{(-)}}^{\circ}=1.36 \mathrm{~V} \\ \mathrm{E}_{\mathrm{MnO}_4^{-} / \mathrm{Mn}^{2+}}^{\circ}=1.51 \mathrm{~V} & \mathrm{E}_{\mathrm{Cr}^{3+} / \mathrm{Cr}}^{\circ}=-0.74 \mathrm{~V}\end{array}\)
the strongest reducing agent is :JEE Mains 2025 Easy
More PYQs from JEE Mains
- Define a relation R on the interval \(\left[0, \frac{\pi}{2}\right)\) by \(x \mathrm{R} y\) if and only if \(\sec ^2 x-\tan ^2 y=1\). Then R is :JEE Mains 2025 Easy
- The number of electrons present in all the completely filled subshells having \(\mathrm{n}=4\) and \(\mathrm{s}=+\frac{1}{2}\) is _______. (Where \(\mathrm{n}=\) principal quantum number and \(\mathrm{s}=\) spin quantum number)JEE Mains 2024 Hard
- For a uniformly charged ring of radius \(R\), the electric field on its axis has the largest magnitude at a distance \(h\) from its centre. Then value of \(h\) isJEE Mains 2019 Hard
- \(\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{Br}+\mathrm{NaOH} \xrightarrow{\mathrm{C}_2 \mathrm{H}_5 \mathrm{OH}}\) Product '\(A\)'
Consider the above reactions, identify product B and product C.JEE Mains 2024 Medium - The correct \(IUPAC\) name of \(\mathrm{K}_2 \mathrm{MnO}_4\) is _______.JEE Mains 2024 Hard
- \(2 \mathrm{SO}_{2}(\mathrm{~g})+\mathrm{O}_{2}(\mathrm{~g}) \rightarrow 2 \mathrm{SO}_{3}(\mathrm{~g})\) The above reaction is carried out in a vessel starting with partial pressure \(\mathrm{P}_{\mathrm{SO}_{2}}=250\, \mathrm{~m}\) \(bar,\) \(\mathrm{P}_{0_{2}}=750 \,\mathrm{~m}\) \(bar\) and \(\mathrm{P}_{\mathrm{SO}_{3}}=0 \,\mathrm{bar}\). When the reaction is complete, the total pressure in the reaction vessel is \(.....\mathrm{m}\) \(bar.\) (Round off to the Nearest Integer).JEE Mains 2021 Medium