JEE Mains · Chemistry · STD 12 -8.1. Aldehydes and ketones
Which will undergo deprotonation most readily in basic medium?
- A \(a\) only
- B \(c\) only
- C Both \(a\) and \(c\)
- D \(b\) only
Answer & Solution
Correct Answer
(A) \(a\) only
Step-by-step Solution
Detailed explanation
Most easily deprotonation
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
- Match List \(I\) with List \(II\)
Choose the correct answer from the options given below:LIST - \(I\) (Technique) LIST - \(II\) (Application) \(A\). Distillation \(I\). Separation of glycerol from spent-lye \(B\). Fractional distillation \(II\). Aniline - Water mixture \(C\). Steam distillation \(III\). Separation of crude oil fractions \(D\). Distillation under reduced pressure \(IV\). Chloroform-Aniline JEE Mains 2024 Hard - The correct pair(s) of the ambident nucleophiles is (are): \((A)\) \(AgCN / KCN\) \((B)\) \(RCOOAg / RCOOK\) \((C)\) \(AgNO _{2} / KNO _{2}\) \((D)\) \(AgI / KI\)JEE Mains 2021 Medium
- \(\mathrm{AB}_{3}\) is an interhalogen \(T-\)shaped molecule. The number of lone pairs of electrons on \(\mathrm{A}\) is ...... .JEE Mains 2021 Easy
- Match List - I with List - II.
List - I
(Transition metal ion)List - II
(Spin only magnetic moment (B.M.))(A) Ti3+ (I) 3.87 (B) V2+ (II) 0.00 (C) Ni2+ (III) 1.73 (D) Sc3+ (IV) 2.84
Choose the correct answer from the options given below :JEE Mains 2025 Medium - One mole of phenol is treated with dilute HNO\(_3\) at \(298\) K to give a mixture of products. The mixture is separated by steam distillation. The steam volatile compound (X) is separated. The increase in percentage of oxygen in (X) with respect to phenol is _____ \(\times 10^{-1}\) %
(Given molar mass in g mol\(^{-1}\) H:\(1\), C:\(12\), N:\(14\), O:\(16\))JEE Mains 2026 Hard - Consider a weak base 'B' of \( pK_b = 5.699 \). 'x' mL of 0.02 M HCl and 'y' mL of 0.02 M weak base 'B' are mixed to make 100 mL of a buffer of pH 9 at \( 25^{\circ}C \).
The values of 'x' and 'y' respectively are:
(Given: \( \log 2=0.3010, \log 3=0.4771, \log 5=0.699 \))JEE Mains 2026 Easy
More PYQs from JEE Mains
- If \(a\) and \(b\) are real numbers such that \((2+\alpha)^{4}=a+b \alpha,\) where \(\alpha=\frac{-1+i \sqrt{3}}{2},\) then \(a+b\) is equal toJEE Mains 2020 Hard
- move in opposite direction with speed ratio \(1: 2\). The following figure represents two biconvex lenses \(L_1\) and \(L_2\) having focal length \(10 \mathrm{~cm}\) and \(15 \mathrm{~cm}\) respectively. The distance between \(\mathrm{L}_1 \& \mathrm{~L}_2\) is _______.
JEE Mains 2024 Hard - Consider the line \(\mathrm{L}\) passing through the points \((1,2,3)\) and \((2,3,5)\). The distance of the point \(\left(\frac{11}{3}, \frac{11}{3}, \frac{19}{3}\right)\) from the line \(\mathrm{L}\) along the line \(\frac{3 x-11}{2}=\frac{3 y-11}{1}=\frac{3 z-19}{2}\) is equal to :JEE Mains 2024 Hard
- Let \(\mathrm{x}_1, \mathrm{x}_2, \mathrm{x}_3, \mathrm{x}_4\) be in a geometric progression. \(2,7,9,5\) are subtracted respectively from \(x_1, x_2, x_3\) \(x_4\) then the resulting numbers are in an arithmetic progression. Then the value of \(\frac{1}{24}\left(x_1 x_2 x_3 x_4\right)\) is :JEE Mains 2025 Easy
- Given below are two statements :
Statement I : In a vernier callipers, one vernier scale division is always smaller than one main scale division.
Statement II : The vernier constant is given by one main scale division multiplied by the number of vernier scale divisions.
In the light of the above statements, choose the correct answer from the options given below.JEE Mains 2025 Easy - If \(\alpha\) and \(\beta\) are the roots of the equation \(2 x (2 x +1)=1,\) then \(\beta\) is equal toJEE Mains 2020 Medium