MCQ
Which has maximum enol content
- A$CH_3CHO$
- B$CH_3COCH_3$
- ✓$CH_3COCH_2COCH_3$ $(91-93\%)$
- D$CH_3COCH_2CHO$
✓
Answer
Correct option: C.
$CH_3COCH_2COCH_3$ $(91-93\%)$
c
Solution:- (C) CH $_{3} \mathrm{COCH}_{2} \mathrm{COCH}_{3}$
Solution:- (C) CH $_{3} \mathrm{COCH}_{2} \mathrm{COCH}_{3}$
Due to intramolecular H-bonding and resonance stabilisation enol content is maximum.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
The intensity of sound from a radio at a distance of $2$ metres from its speaker is $1 \times {10^{ - 2}}\mu \;W/{m^2}.$ The intensity at a distance of $10$ meters would be
→The orbital speed of Jupiter is
The surface tension of soap solution is $3.5 \times 10^{-2}\,Nm ^{-1}$. The amount of work done required to increase the radius of soap bubble from $10\,cm$ to $20\,cm$ is $.....\times 10^{-4}\,J$
→In a toroid the number of turns per unit length is $1000$ and current through it is $\frac{1}{4 \pi}$ ampere. The magnetic field produced inside (in $weber / m ^2$ ) will be
→$X-$ ray beam can be deflected by
→Given below are two statements:
→Statement $I:$ If heat is added to a system, its temperature must increase.
Statement $II:$ If positive work is done by a system in a thermodynamic process, its volume must increase.
In the light of the above statements, choose the correct answer from the options given below
A ray of light is incident on a thick slab of glass of thickness $t$ as shown in the figure. The emergent ray is parallel to the incident ray but displaced sideways by a distance $d$. If the angles are small then $d$ is
→A body of mass $5\,kg$ is suspended by a spring balance on an inclined plane as shown in figure. The spring balance measure ............ $N$
→Out of the following:
A. pole
B. focus
C. the radius of curvature and
D. principal axis for a spherical mirror, the quantities that do not depend on whether the rays are paraxial or not, are
A. pole
B. focus
C. the radius of curvature and
D. principal axis for a spherical mirror, the quantities that do not depend on whether the rays are paraxial or not, are
A light emitting diode $(LED)$ is fabricated using GaAs semiconducting material whose band gap is $1.42 \mathrm{eV}$. The wavelength of light emitted from the $LED$ is:
→