COMEDK · Chemistry · 26. Alcohols Phenols and Ethers
Which of the following tests may be used to distinguish between phenol and cyclohexanol?
- A Hinsberg test
- B Iodoform test
- C Reaction with Na metal
- D Ferric chloride test
Answer & Solution
Correct Answer
(D) Ferric chloride test
Step-by-step Solution
Detailed explanation
Phenol is an aromatic compound containing a hydroxyl group attached directly to a benzene ring, which imparts acidic character to the molecule. Cyclohexanol is an aliphatic cyclic alcohol. The ferric chloride test is a characteristic test for phenols. Phenols react with neutral…
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
- Atomic numbers of vanadium, chromium, nickel and iron are \(23,24,28\) and 26 respectively. Which one of these is expected to have the highest second ionisation enthalpy?COMEDK 2014 Medium
- \(56 \mathrm{~g}\) of nitrogen and \(8 \mathrm{~g}\) of hydrogen gas are heated in a closed vessel. At equilibrium \(34 \mathrm{~g}\) of ammonia are present. The equilibrium number of moles of nitrogen, hydrogen and ammonia are respectivelyCOMEDK 2016 Hard
- The standard emf of the cell \(\mathrm{Zn}\left|\mathrm{Zn}^{2+}\right|\left|\mathrm{Ag}^{+}\right| \mathrm{Ag}\) is \(1.56 \mathrm{~V}\). If the standard reduction potential of \(\mathrm{Ag}\) is \(0.8 \mathrm{~V}\), the standard oxidation potential of \(\mathrm{Zn}\) isCOMEDK 2014 Medium
- In the following sets of ions, which one is not isoelectronic with the rest of the species?
\[
\mathrm{O}^{2-}, \mathrm{F}^{-}, \mathrm{Na}, \mathrm{Mg}^{2+}, \mathrm{Al}^{3+}, \mathrm{Ne}
\]COMEDK 2014 Easy - Which of the following 2 compounds exhibit both Geometrical and Structural isomerism?
\(\begin{aligned}
& \mathrm{A}=\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_4 \mathrm{Cl}_2\right] \mathrm{NO}_2 \\
& \mathrm{~B}=\left[\mathrm{Co}\left(\mathrm{NH}_3\right) \mathrm{Br}\right] \mathrm{SO}_4 \\
& \mathrm{C}=\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_3\left(\mathrm{NO}_2\right)_3\right] \\
& \mathrm{D}=\left[\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right] \mathrm{Cl}_3
\end{aligned}\)COMEDK 2024 Medium - A statement of Assertion followed by a statement of Reason is given. Choose the correct answer out of the following options.
Assertion: The Eclipsed and the Staggered conformations of Ethane continuously flip from one form to the other.
Reason: The torsional barrier between the Conformers of Ethane has a high value of about \(50 \mathrm{~kJ} / \mathrm{mol}\) and this restricts free rotation around \(\mathrm{C}-\mathrm{C}\) bond.COMEDK 2024 Medium
More PYQs from COMEDK
- A motor cyclist starts from the top of an inclined plane of height h to go around a globe of death trap of radius r. The ratio of minimum height 'h' of the inclined plane to the radius 'r' of the death globe in order to go around the death globe successfully isCOMEDK 2026 Medium
- Kepler's second law of planetary motion corresponds toCOMEDK 2021 Easy
- Assuming no change in volume, the time required to obtain solution of \(\mathrm{pH}=4\) by electrolysis of \(100 \mathrm{~mL}\) of \(0.1 \mathrm{M} \mathrm{NaOH}\) (using current \(0.5 \mathrm{~A}\) ) will beCOMEDK 2023 Hard
- A hydrogen atom absorbs energy and rises to n = 3 state from its ground state n = 1. If the potential energy of the atom at its ground state is -13.6eV, find the wave length emitted by it when it returns to its ground state:
{Planck's constant= \(6.6 \times 10^{34}\) J s}COMEDK 2026 Medium - Four charges each with charge \(+q\) are placed at the four corners of a square of side \(l\), a charge \(\frac{-q}{4}\) is at centre of the square. Force on the charge at the centre due to other charges isCOMEDK 2024 Easy
- How many grams of potassium dichromate are required to oxidise 20.0 g of \(\mathrm{Fe}^{2+}\) in \(\mathrm{FeSO}_4\) to \(\mathrm{Fe}^{3+}\) if the reaction carried out in an acidic medium? Molar mass of \(\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7\) and \(\mathrm{FeSO}_4\) are 294 and 152 respectively.COMEDK 2024 Easy