JEE Mains · Chemistry · STD 12 -8.1. Aldehydes and ketones
Consider the following reactions \(A\xrightarrow[(ii)\;H_3O^+]{(i)\;CH_3MgBr}B\xrightarrow[573\;K]{Cu}2-\)methyl \(2-\)butene The mass percentage of carbon in \(A\) is
- A \(72.72\)
- B \(37.62\)
- C \(33.33\)
- D \(66.67\)
Answer & Solution
Correct Answer
(D) \(66.67\)
Step-by-step Solution
Detailed explanation
\(A\xrightarrow[(ii)\;H_3O^+]{(i)\;CH_3MgBr}B\xrightarrow[573\;K]{Cu}2-\)methyl \(2-\)butene…
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
- Among \(10^{-9} \mathrm{~g}\) (each) of the following elements, which one will have the highest number of atoms? Element : \(\mathrm{Pb}, \mathrm{Po}, \mathrm{Pr}\) and PtJEE Mains 2025 Medium
- The total number of unpaired electrons present in the \(d^3\), \(d^4\) (low spin), \(d^5\) (high spin), \(d^6\) (high spin) and \(d^7\) (low spin) octahedral complex systems is _______.JEE Mains 2026 Medium
- Among the following vitamins the one whose deficiency causes rickets (bone deficiency) isJEE Mains 2013 Easy
- \(17\,mg\) of a hydrocarbon (M.F. \(C _{10} H _{16}\) ) takes up \(8.40\,mL\) of the \(H _2\) gas measured at \(0^{\circ}\,C\) and \(760\,mm\) of \(Hg\). Ozonolysis of the same hydrocarbon yields \(Image\) The number of double bond/s present in the hydrocarbon is \(...........\).
JEE Mains 2023 Hard - The major product (\(Y\)) in the following reactions is \(\begin{array}{*{20}{c}}
{C{H_3}\,\,\,\,\,\,\,\,\,} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{C{H_3} - CH - C = CH}
\end{array}\xrightarrow[{{H_2}O}]{{HgS{O_4},{H_2}S{O_4}}}X\) \(\xrightarrow[{(ii)\,conc.{H_2}S{O_4}/\Delta }]{{(i)\,{C_2}{H_5}MgBr,{H_2}O}}Y\)JEE Mains 2020 Hard - Which one has the highest boiling point ?JEE Mains 2015 Easy
More PYQs from JEE Mains
- If \(1+\left(1-2^{2} \cdot 1\right)+\left(1-4^{2} \cdot 3\right)+\left(1-6^{2} \cdot 5\right)+\ldots \ldots+\left(1-20^{2} \cdot 19\right)\) \(=\alpha-220 \beta,\) then an ordered pair \((\alpha, \beta)\) is equal toJEE Mains 2020 Medium
- Three infinitely long wires with linear charge density \(\lambda\) are placed along the \(x-a x i s, y\)-axis and \(z-\) axis respectively. Which of the following denotes an equipotential surface?JEE Mains 2025 Hard
- If the value of \(\left(1+\frac{2}{3}+\frac{6}{3^{2}}+\frac{10}{3^{3}}+\ldots \text { upto } \infty\right)^{\log _{(0.25)}\left(\frac{1}{3}+\frac{1}{3^{2}}+\frac{1}{3^{3}}+\ldots . \text { uptow }\right)}\) is \(l\), then \(l^{2}\) is equal to \(......\)JEE Mains 2021 Hard
- If the distances of the point (1, 2, a) from the line \(\frac{x-1}{1}=\frac{y}{2}=\frac{z-1}{1}\) along the lines
\(L_{1}:\frac{x-1}{3}=\frac{y-2}{4}=\frac{z-a}{b}\) and
\(L_{2}:\frac{x-1}{1}=\frac{y-2}{4}=\frac{z-a}{c}\) are equal,
then \(a+b+c\) is equal toJEE Mains 2026 Easy - Two discs of moment of inertia \(I_1=4 \mathrm{~kg} \mathrm{~m}^2\) and \(\mathrm{I}_2=2 \mathrm{~kg} \mathrm{~m}^2\) about their central axes & normal to their planes, rotating with angular speeds \(10 \mathrm\ {rad} / \mathrm{s}\) & \(4 \mathrm\ {rad} / \mathrm{s}\) respectively are brought into contact face to face with their axe of rotation coincident. The loss in kinetic energy of the system in the process is _______ \(\mathrm{J}\).JEE Mains 2024 Hard
- The ionization enthalpy of \(Na ^{+}\) formation from \(Na _{( g )}\) is \(495.8\, kJ\, mol ^{-1},\) while the electron gain enthalpy of \(Br\) is \(-325.0\, kJ\, mol ^{-1}\). Given the lattice enthalpy of \(NaBr\) is \(-728.4\, kJ\, mol ^{-1}\). The energy for the formation of NaBr ionic solid is \((-)\) ........... \(\times 10^{-1} kJ \,mol ^{-1}\)JEE Mains 2021 Medium