List of top Chemistry Questions asked in CUET (PG)

Stability of the species Li, Li\(_2\), and Li\(_2^+\) increases in the order of:

SF₂, SF₄, and SF₆ have the hybridization at sulfur atom respectively as:

The probability of finding the electron in the px orbital is
(A). Zero at the nucleus
(B). Maximum on two opposite sides of the nucleus along the X-axis
(C). Zero on the Z-axis
(D). Same on all sides around the nucleus
Choose the correct answer from the options given below:

Oxidation state of each Cl in CaOCl is/are

Calculate the wavelength (in nanometer) associated with a proton moving at \(1.0 \times 10^3 \, \text{m/s}\)
Choose the correct answer from the options given below:

Electronegativity of the following elements increases in the order
(A). C
(B). N
(C). Si
(D). P
Choose the correct answer from the options given below:

What will be the concentration of ammonium ions (NH₄⁺) in moles per litre units in a solution having 10 ppm of ammonium ions ?

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

Considering the following reactions and their reduction potentials in acidic medium

What will be the free energy change (\(\triangle\)G) of the reaction. \(IO^-_3\)→ \(\frac{1}{2}I_2\)

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

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

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 class of the following reaction.

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:

Identify the major product in the following reaction

The properties used for calculating Pauling's electronegativity and Mullikan electronegativity, respectively are

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: The moving boundary method yields more accurate data on transference number than does the Hittorf method.
Reason R: In moving boundary method, indicator electrolyte has same anion as principal electrolyte and is placed at the bottom due to its higher density.
In the light of the above statements, choose the most appropriate answer from the options given below:

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.

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: