COMEDK · Chemistry · 33. Practical Chemistry
Phenol can be distinguished from ethyl alcohol using
- A \(\mathrm{Na}\)
- B \(\mathrm{AlCl}_{3}\)
- C \(\mathrm{NaOH}\)
- D \(\mathrm{FeCl}_{3}\)
Answer & Solution
Correct Answer
(D) \(\mathrm{FeCl}_{3}\)
Step-by-step Solution
Detailed explanation
Phenol can be distinguished from ethyl alcohol using \(\mathrm{FeCl}_{3}\) because phenol gives voilet colour compound with \(\mathrm{FeCl}_{3}\). While, alcohol do not give voilet colour.
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
- Density of \(3 \mathrm{M}\) solution of \(\mathrm{NaCl}\) is \(1.25 \mathrm{~g} / \mathrm{mL}\). The mass of the solvent in the solution isCOMEDK 2014 Medium
- Consider the following statements in respect of lanthanides, which of the statements are incorrect?
(i) \(\mathrm{La}(\mathrm{OH})_3\) is least basic among the hydroxides of lanthanides
(ii) The lanthanide ions \(\mathrm{Yb}^{2+}, \mathrm{Lu}^{3+}\) and \(\mathrm{Ce}^{4+}\) are diamagnetic in nature.
(iii) \(\mathrm{Ce}^{4+}\) can act as an oxidising agent
(iv) \(\operatorname{Ln}\) (III) compounds are generally colourless
(v) Ionic radii of \(\mathrm{Ce}^{3+}\) is greater than \(\mathrm{Yb}^{3+}\)COMEDK 2024 Medium - The \(\mathrm{pH}\) of \(10^{-8} \mathrm{M} \mathrm{HCl}\) solution isCOMEDK 2018 Easy
- The ratio of average velocity of a gas molecule to the root mean square velocity at a particular temperature isCOMEDK 2023 Easy
- The 'd' electronic configuration of \(\left[\mathrm{Ru}(\mathrm{en})_3\right] \mathrm{Cl}_2\) and \(\left[\mathrm{Fe}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right] \mathrm{Cl}_2\) respectively are _____ and ____ .
[Given: Atomic number of \(\mathrm{Ru}=44\) and \(\mathrm{Fe}=26\) ]COMEDK 2025 Medium - \(300 \mathrm{ml}\) of an aqueous solution of \(\mathrm{NaOH}\) with \(\mathrm{pH}\) value of 10 is mixed with \(200 \mathrm{ml}\) of an aqueous solution of \(\mathrm{HCl}\) with a \(\mathrm{pH}\) value of 4. What will be the \(\mathrm{pH}\) of the resultant solution at room temperature?COMEDK 2024 Medium
More PYQs from COMEDK
- The value of \(\tan 67 \frac{1^{\circ}}{2}+\cot 67 \frac{1^{\circ}}{2}\) isCOMEDK 2019 Medium
- Kiran purchased 3 pencils, 2 notebooks and one pen for ₹41.
From the same shop Manasa purchased 2 pencils, one notebook and 2 pens for ₹ 29, while Shreya purchased 3 pencils, 2 notebooks and 2 pens for ₹44.
The above situation can be represented in matrix form as \(A X=B\).
Then \(|\operatorname{adj} A|\) is equal toCOMEDK 2025 Medium - One volt induced emf is produced in the secondary coil when the current through the primary coil is changed from \(3 \mathrm{~A}\) to \(1 \mathrm{~A}\) in 100 milliseconds. the mutual inductance of the two coil is:COMEDK 2023 Easy
- The concentration of the reactant \(R\) with time \(t\) for two different reactants (i) and (ii) are given in the plots. The respective orders of the reactants are:
COMEDK 2025 Easy - Consider an experiment \(E\) in which a box contains 10 identical tickets numbered 1 to 10 and 2 tickets are drawn at random from the box. What is the probability that both the tickets have even number on them?COMEDK 2014 Medium
- The angle between the two lines whose direction cosines satisfy the relations \(l + m + n = 0\) and \(l^2 = m^2 + n^2\) isCOMEDK 2026 Medium