JEE Mains · Chemistry · STD 12 - 7. Alcohol, phenol and ethers
What is \('X'\) in the given reaction? \(\begin{array}{*{20}{c}} {C{H_2}OH} \\ {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ {C{H_2}OH} \end{array}\) \(+\) oxalic acid \(\xrightarrow{{{{210}^o}C}}\) \(\quad\quad X\) \(\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\)(major product)
- A \(\begin{array}{*{20}{c}} {C{H_2}} \\ {||\,\,\,\,\,\,\,} \\ {C{H_2}} \end{array}\)
- B \(\begin{array}{*{20}{c}} {CH - OH} \\ {||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ {C{H_2}\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \end{array}\)
- C \(\begin{array}{*{20}{c}} {CHO} \\ {|\,\,\,\,\,\,\,\,\,\,\,} \\ {CHO} \end{array}\)
- D \(\begin{array}{*{20}{c}} {C{H_2}OH} \\ {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ {CHO\,\,\,\,\,\,} \end{array}\)
Answer & Solution
Correct Answer
(A) \(\begin{array}{*{20}{c}} {C{H_2}} \\ {||\,\,\,\,\,\,\,} \\ {C{H_2}} \end{array}\)
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
- Solid fuel used in rocket is a mixture of \(Fe _2 O _3\) and \(Al\) (in ratio \(1: 2\) ). The heat evolved \(( kJ )\) per gram of the mixture is \(............\). (Neatest integer) Given : \(\Delta H _{ f }^{\ominus}\left( Al _2 O _3\right)=-1700\,kJ\,mol ^{-1}\) \(\Delta H _{ f }^\theta\left( Fe _2 O _3\right)=-840\,kJ\,mol ^{-1}\) Molar mass of \(Fe , Al\) and \(O\) are \(56,27\) and \(16\,g\,mol ^{-1}\) respectively.JEE Mains 2023 Medium
- Identity the incorrect pair from the following:JEE Mains 2024 Hard
- The \(\mathrm{pH}\) of an aqueous solution containing \(1 \mathrm{M}\) benzoic acid \(\left(\mathrm{pK}_{\mathrm{a}}=4.20\right)\) and \(1 \mathrm{M}\) sodium benzoate is \(4.5\). The volume of benzoic acid solution in 300 \(\mathrm{mL}\) of this buffer solution is _______ \(\mathrm{mL}\).JEE Mains 2024 Hard
- Increasing rate of \(S_N1\) reaction in the following compounds is
JEE Mains 2019 Hard - Sodium oxide reacts with water to produce sodium hydroxide. \(20.0\, \mathrm{~g}\) of sodium oxide is dissolved in \(500\, \mathrm{~mL}\) of water. Neglecting the change in volume, the concentration of the resulting \(\mathrm{NaOH}\) solution is \(........\times \quad 10^{-1} \quad\) \(M.\) (Nearest integer) [Atomic mass \(: \mathrm{Na}=23.0, \mathrm{O}=16.0, \mathrm{H}=1.0]\)JEE Mains 2021 Hard
- If the principal quantam number \(n=6,\) the correct sequence of filling of electron will beJEE Mains 2015 Hard
More PYQs from JEE Mains
- \(\Delta U\) is equal toJEE Mains 2017 Easy
- The set of correct statements is: \((i)\) Manganese exhibits \(+7\) oxidation state in its oxide. \((ii)\) Ruthenium and Osmium exhibit \(+8\) oxidation in their oxides. \((iii)\) \(Sc\) shows \(+4\) oxidation state which is oxidizing in nature. \((iv)\) \(Cr\) shows oxidising nature in \(+6\) oxidation state.JEE Mains 2023 Medium
- Let \(u=\frac{2 z+i}{z-k i}, z=x+i y\) and \(k>0 .\) If the curve represented by \(\operatorname{Re}( u )+\operatorname{Im}( u )=1\) intersects the \(y\)-axis at the points \(P\) and \(Q\) where \(P Q=5,\) then the value of \(k\) isJEE Mains 2020 Hard
- If \(x,y,z\) are in \(A.P.\) and \({\tan ^{ - 1}}x,{\tan ^{ - 1}}y\) and \({\tan ^{ - 1}}z\) are also in other \(A.P.\) then . . .JEE Mains 2013 Medium
- \(\frac{6}{3^{26}}+\frac{10 \cdot 1}{3^{25}}+\frac{10 \cdot 2}{3^{24}}+\frac{10 \cdot 2^2}{3^{23}}+\ldots+\frac{10 \cdot 2^{24}}{3}\) is equal toJEE Mains 2026 Easy
- Two travelling waves produces a standing wave represented by equation, \({y}=1.0\, {mm} \cos \left(1.57 \,{cm}^{-1}\right) {x} \sin \left(78.5\, {s}^{-1}\right) {t}\) The node closest to the origin in the region \({x}>0\) will be at \({x}=\ldots \ldots \ldots\, {cm}\)JEE Mains 2021 Medium