List of top Questions asked in CUET (PG)

What are the most common electronic transition(s) associated with carbonyl functional group?
\(\alpha\rightarrow\pi\) 
\(\alpha\rightarrow n\) 
\(n \rightarrow \pi^*\)
\(\pi \rightarrow \pi^*\)

Which of the following expression holds good for Freundlich adsorption isotherm ?

Given below are two statements:
Statement I: For Na⁺ | K⁺ pump, the active ion transport involve three Na⁺ expelled out for two K⁺ ions intake across the cell membrane.
Statement II: Binding of K⁺ induces phosphorylation of ADP to ATP.
In the light of the above statements, choose the most appropriate answer from the options given below:

The experimental magnetic moment (3.4 BM) of a hydrated salt of \(Eu^{3+}\) at 300 K is significantly different from calculated value. The difference is due to (Given atomic number of \(E_u\) = 63)

Benzyne bond is formed by the

Find out the degree of dissociation of HF in 1 M aqueous solution. The value of K for the ionic equilibrium \(HF ⇌ H^++F^-\; is \;7.2 × 10^{-4.}\)

The relative order of stability of conformers of 1,3-dimethylcyclohexane is (equatorial - e, axial-a)

Which of the following compound represent the correct structure of (2R, 3S)-2,3-pentanediol?

The hydrolysis products of \(Al_4,C_3\), and \(Be_2C\) are

Arachno and nido structure of Boranes have general formula respectively

Phenylbenzoate can be prepared from phenol using which of the following name reaction?

The structure of a carborane, \(C_2B_5H_7\), is

Match List I with List II:
     List I (Reaction)                                                                List II (Mettalo enzyme)
(A) \(R-H+O_2+2H^++2e^-R-OH+H_2O\)         (I) Cytochrome P-450
(B) \(2H_2O_2\rightarrow 2H_2O+O_2\)                                                 (II) Catalase
(C) e-transfer protein                                                           (III) Ferredoxin
(D) \(O_2+4H^++4e^- \rightarrow2H_2O\)                                     (IV)   Cytochrome (oxidase)
Choose the correct answer from the options given below:

Identify the major product in the following reaction

Deduce the structure of the product in the following reaction

Identify the major product in the following reaction.

Identify the major product in the following reaction.

The following reaction undergoes via _________ and is known as ______ reaction.

Choose the correct product formed in the following reaction

Match List I with List II

List I		List II
A.	Carbonyl compounds react with ylide to form alkene.	I.	Cannizzaro Reaction
B.	Ketone reacts with zinc-mercury amalgam in HCl as reducing agent to form alkane.	II.	Clemmensen Reduction
C.	Carbonyl compounds react with basic solution of hydrazine as reducing agent to produce alkane.	III.	Wittig Reaction
D.	Formaldehyde react with NaOH to form methanol.	IV.	Wolf-Kishner Reduction

Choose the correct answer from the options given below:

The bond enthalpies for C-H, C1-C1, C-C1 and H-Cl are 99, 58, 78 and 103 kcal/mol respectively. What will be the AH for the reaction
CH_4(g) + Cl_2(g) → CH₃Cl_(g) + HCl_(g)

Select the option which is correct about photochemical reaction:
A. Temperature has very little effect on rate of reaction.
B. The presence of light is the primary requirement.
C. AG may be positive or negative for spontaneous photochemical reaction.
D. Photochemical reaction always involves emission of light radiation.
Choose the correct answer from the options given below:

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: Concentrated HNO₃ is colourless but often turns yellow on keeping.
Reason R: Photo chemical decomposition of HNO₃ gives NO₂.
In the light of the above statements, choose the most appropriate answer from the options given below:

The initial rate of a reaction in which the substrate, S, undergoes a reaction in the presence of catalyst C, was found to be equal to v₀ = \(\frac{K_2[S]_0[C]_0}{[S]_0+Km} \)The probable condition in which the reaction took place was

Identify the class of the following reaction.