List of top Questions asked in CUET (UG)- 2023

An inorganic salt taken in a test tube was mixed with of freshly prepared ferrous sulphate solution. Concentrated sulphuric acid was then added along the walls of the test tube. Predict the formula of the compound formed:

Phenol is manufactured from hydrocarbon, Cumene. Cumene is chemically:

Zone refining is based on the principle that

Which one of the following statements is incorrect about enzyme catalysis?

Match List -I with List-II

	List -I		List-II
A	Buna-S	I	Vinyl chloride
B	Neoprene	II	1,3-Butadiene and styrene
C	PVC	III	Tetra flouroethene
D	Teflon	IV	Chloroprene

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Amongst the following, identify the condensation polymer/s:
(A) Bakelite
(B) Teflon
(C) Melamine formaldehyde resin
(D) Nylon-2 nylon-6
(E) Buna-S
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Find the correct stoichiometric coefficients in the following redox equation:
xH⁺ + yC₆H₅CH₃ + wMnO^-₄ → aH₂O + bMn²⁺ + tC₆H₅COOH

Match List I with List II

List-I		List-II
(A)	Van Arkel Method	(I)	Copper
(B)	Zone Refining	(II)	Titanium
(C)	Mond Process	(III)	Germanism
(D)	Electrolytic Refining	(IV)	Nickel

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The IUPAC name of

Match List I with List II

List-I		List-II
(A)	Cyanocobalamine	(I)	Hydrogenation of Alkenes
(B)	Wilkinson catalyst	(II)	Antipernicious anemia factor
(C)	D-penicillamine	(III)	Refining of Ni
(D)	Mond's Process	(IV)	Treatment of toxic effects of copper

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Match List I with List II

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The reactions taking place during electrolysis of aqueous solution of CuCl₂ with platinum electrodes are :
A. Cu²⁺(aq) + 2e^- → Cu(s)
B. H⁺(aq) + e^- → \(\frac{1}{2}H_2(g)\)
C. H₂O(l) + e^- → \(\frac{1}{2}H_2(g)+^-OH(aq)\)
D. Cl^-(aq) → \(\frac{1}{2}Cl_2(g)+e^-\)
E. 2^-OH(aq) → H₂O(l) + \(\frac{1}{2}O_2(g)+2e^-\)
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Match List I with List II

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Rate of a reaction changes from 2.48 x 10^-3 mol sec^-1 to 4.96x 10^-3 mol sec^-1 when concentration of reactant, is changes from 0.6M to 2.4 M respectively, the order of reaction is

During peptization the
precipitate breaks up into smaller particles of the size of a colloid
molecules aggregate together to form a colloid
the precipitate adsorb one of the ions of the electrolyte on its surface
precipitate is shaken with the dispersion medium
molecules loses positive and negative charge.
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Which of the following statements are true?
A. Flocculation value is inversely proportional to the coagulating power.
B. Colloidal silicon is a protective colloid.
C. Alum is used for cleaning muddy water.
D. Gelatin is added to ice cream to act as an emulsifier.
Choose the most appropriate answer from the options given below.

Match List - I with List- II.

List - I	List - II
(A) Phenols	(I) Lucas Test
(B) Ethers	(II) Reimer Tiemann reaction
(C) Alcohols	(III) Williamson's Synthesis
(D) 2, 4,6 - trinitrophenols	(IV) Picric acid

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Which of the following will not form propionaldehyde?

Which of the following defects are shown by KCl crystal?
(A) Schottky defect
(B) Frenkel defect
(C) Metal excess defect
(D) Metal deficiency defect
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Vitamin C is also called-

The presence or absence of hydroxyl group on which carbon atom of sugar differentiate RNA and DNA:

Actinoid contraction is of greater extent then lanthanide contraction because :

Match List-I with List-II.

List-I		List-II
(A)	Nylon	(I)	Terylene
(B)	Polyester	(II)	Caprolactam
(C)	Bakeli	(III)	Isoprene
(D)	Rubber	(IV)	Novolac

Choose the correct answer from the options given below:

[Co(NH₃)₄Cl(NO₂)]Cl will show:
A. Solvate isomerism
B. Linkage isomerism
C. Coordination isomerism
D. Ionisation isomerism
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A first order reaction is found to have a rate constant, \(k = 5.5 × 10^{-14} s^{-1}\). Find the half life of the reaction.