CUET · CHEMISTRY · PYQ PAPER 2025
Phenols are acidic in nature. Which of the following statements is incorrect about them?
- A Phenols are soluble in aqueous alkali solution
- B Phenol liberates hydrogen gas on reaction with sodium metal.
- C Phenol liberates carbon dioxide on reaction with sodium bicarbonate.
- D Phenol is less stabilized by resonance than phenoxide ion.
Answer & Solution
Correct Answer
(C) Phenol liberates carbon dioxide on reaction with sodium bicarbonate.
Step-by-step Solution
Detailed explanation
Phenol liberates carbon dioxide on reaction with sodium bicarbonate.
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
- What does a negative \(E ^{\circ}\) (standard reduction potential) value of a redox couple indicate?CUET 2023 Medium
- Amylose and amylopectin are the two components of starch. Which of the following statement is true?CUET 2023 Hard
- The only carboxylic acid which gives positive Tollen's test isCUET 2023 Medium
- Match the coordination compounds given in List-l with the central metal atoms given in List-ll
List-I (Coordination compound) List-II (Central metal atom) (A) blood pigment (I) iron (B) chlorophyll (II) magnesium (C) vitamin B12 (III) rhodium (D) wilkinson catalyst (IV) cobalt
Choose the correct answer from the options given below:CUET 2025 Medium - Read the Passage carefully and answer the Questions
Kinetic studies not only help us to determine the rate of a chemical reaction but also describe the conditions by which the reaction rates can be altered. The factors such as concentration, temperature, pressure and catalyst affect the rate of a reaction.
The speed of a reaction or the rate of a reaction can be defined as the change in concentration of a reactant or product in unit time.
Rate \(=k[A]^x[B]^y\)
Here \(k\) is the rate constant
\(x+y\) gives the overall order of a reaction, whereas \(x\) and \(y\) represent the order with respect to the reactants \(A\) and \(B\), respectively.
Which of the following statements are correct?
(A) Catalysts increase the rate of a chemical reaction.
(B) Catalysts can catalyze both spontaneous and non-spontaneous reactions.
(C) Higher the activation energy for a chemical reaction, lower is the rate of the reaction.
(D) Catalyst increases the potential energy barrier.
Choose the correct answer from the options given below:CUET 2025 Easy - Which of the following statement is correct about the half life period?
A. It is proportional to initial concentration of zero order reaction.
B. Half life period can be used to determine the order of the reaction.
C. Half life period for lst order reaction is independent of concentration.
D. Catalyst does not affect half life time period.CUET 2023 Easy
More PYQs from CUET
- Answer the question on basis of passage given below :
In zwitter ionic form, amino acids show amphoteric behaviour as they react both with acids and bases.
Except glycine, all other naturally occurring \(\alpha\) - amino acids are optically active, since the \(\alpha\) -carbon atom is asymmetric. These exist both in 'D' and 'L' forms. Most naturally occurring amino acids have L-configuration. L-Aminoacids are represented by writing the \(-NH_2\) group on left hand side.
Optically inactive amino acid from the following is :CUET 2023 Medium - Match List-l with List-II:
List-I (Transgene) List-II (Used for/Products) (A) α-1-antitrypsin (I) Meloidogyne incognitia (B) crylAc (II) Corn borer (C) Antisense RNA (III) Treat emphysema (D) crylAb (IV) Cotton bollworms
Choose the correct answer from the options given below:CUET 2024 Easy - The blastocyst becomes embedded in the endometrium of the uterus. This is called :CUET 2025 Easy
- Choose the correct statement from the following:CUET 2025 Hard
- A molecule that can act as the genetic material must fulfill all the mentioned criteria except one which is incorrect.CUET 2025 Medium
- The real valued function \(f(x)=x^{15}+5 x^9+10\) is increasing for __________ .CUET 2025 Easy