CUET 2026 Chemistry June 6 Shift 1 Question Paper- Download Answer Key and Solution PDF

For the following reaction choose the incorrect expression of rate of reaction. \[ 5 Br^{-}(aq.) + BrO_{3}^{-}(aq.) + 6 H^{+}(aq.) \rightarrow 3 Br_{2}(aq.) + 3 H_{2}O(l) \]

• (A) \(Rate = -\frac{1}{5}\frac{\Delta[Br^{-}]}{\Delta t}\)
• (B) \(Rate = -\frac{1}{6}\frac{\Delta[H^{+}]}{\Delta t}\)
• (C) \(Rate = -\frac{1}{3}\frac{\Delta[Br_{2}]}{\Delta t}\)
• (D) \(Rate = -\frac{\Delta[BrO_{3}^{-}]}{\Delta t}\)

What would be the correct structure of thymine base?

• (A) figA
• (B) figB
• (C) figC
• (D) figD

What is the product Y in the following chemical reaction?

• (A) \(C_{2}H_{5}OCH_{3}\)
• (B) \(C_{2}H_{5}OC_{2}H_{5}\)
• (C) \(CH_{3}OCH_{3}\)
• (D) \(H_{2}C=CH_{2}\)

The order of a reaction whose rate constant \(k = 0.693\times10^{-6}\,L mol^{-1}s^{-1}\) is:

• (A) 0
• (B) 2
• (C) 1
• (D) 3

Choose the Incorrect option regarding valence bond theory of coordination compound.

• (A) It does not give a quantitative interpretation of the thermodynamic stabilities of coordination compounds.
• (B) It does not explain the colour exhibited by coordination compounds.
• (C) It does not give quantitative interpretation of magnetic data.
• (D) It does not distinguish between outer orbital and inner orbital complexes.

Limiting molar conductivities for some ions in water at \(298\,K\) are given below:
\[ \lambda_m^\circ(\mathrm{H^+})=349.6,\quad \lambda_m^\circ(\mathrm{Na^+})=50.1,\quad \lambda_m^\circ(\mathrm{Ca^{2+}})=119.0, \] \[ \lambda_m^\circ(\mathrm{Mg^{2+}})=106.0,\quad \lambda_m^\circ(\mathrm{Cl^-})=76.3,\quad \lambda_m^\circ(\mathrm{SO_4^{2-}})=160.0 \]

Choose the correct decreasing order of molar conductivity \((\Lambda_m^\circ)\) for \(\mathrm{NaCl}\), \(\mathrm{HCl}\), \(\mathrm{CaCl_2}\) and \(\mathrm{MgSO_4}\).

• (A) \(\mathrm{HCl} > \mathrm{CaCl_2} > \mathrm{MgSO_4} > \mathrm{NaCl}\)
• (B) \(\mathrm{HCl} > \mathrm{CaCl_2} > \mathrm{NaCl} > \mathrm{MgSO_4}\)
• (C) \(\mathrm{NaCl} > \mathrm{CaCl_2} > \mathrm{MgSO_4} > \mathrm{HCl}\)
• (D) \(\mathrm{NaCl} > \mathrm{HCl} > \mathrm{CaCl_2} > \mathrm{MgSO_4}\)

Arrange the compounds in order of their increasing boiling points.

(A) 1-bromoethane

(B) 1-bromobutane

(C) 2-bromo-2-methylpropane

(D) 2-bromobutane

• (A) (A), (C), (D), (B)
• (B) (A), (D), (C), (B)
• (C) (C), (D), (A), (B)
• (D) (C), (A), (D), (B)

Write the major product A in the following chemical reaction.

• (A) figA
• (B) figB
• (C) figC
• (D) figD

The complex \([\mathrm{Co(NH_3)_6}]^{3+}\) is:

• (A) \(sp^3d^2\) hybridised and paramagnetic
• (B) \(sp^3d^2\) hybridised and diamagnetic
• (C) \(d^2sp^3\) hybridised and paramagnetic
• (D) \(d^2sp^3\) hybridised and diamagnetic

The major product Z in the following chemical reaction is:

• (A) figA
• (B) figB
• (C) figC
• (D) figD

Arrange the following \(3d\)-series elements in decreasing order of their second ionisation enthalpy:

(A) \(\mathrm{Ti} \ (Z=22)\)

(B) \(\mathrm{V} \ (Z=23)\)

(C) \(\mathrm{Cr} \ (Z=24)\)

(D) \(\mathrm{Mn} \ (Z=25)\)

• (A) (C), (B), (D), (A)
• (B) (D), (C), (B), (A)
• (C) (D), (B), (C), (A)
• (D) (C), (D), (B), (A)

The reagent used in the Stephen reaction is:

• (A) \(\mathrm{Pd-BaSO_4 + H_2}\)
• (B) \(\mathrm{SnCl_2 + HCl}\)
• (C) \(\mathrm{AlH(i-Bu)_2 + H_2O}\)
• (D) DIBAL-H \(+\mathrm{H_2O}\)

The following reaction can be best described as:
\[ 3\mathrm{MnO_4^{2-}}+4\mathrm{H^+} \rightarrow 2\mathrm{MnO_4^-} +\mathrm{MnO_2} +2\mathrm{H_2O} \]

• (A) Coupling
• (B) Disproportionation
• (C) Displacement
• (D) Oxidative fusion

Match List-I with List-II.

• (A) (A)-(IV), (B)-(III), (C)-(I), (D)-(II)
• (B) (A)-(III), (B)-(IV), (C)-(I), (D)-(II)
• (C) (A)-(III), (B)-(IV), (C)-(II), (D)-(I)
• (D) (A)-(IV), (B)-(III), (C)-(II), (D)-(I)

Select the correct statements related to carbohydrates:

(A) Glucose is also known as dextrose.

(B) In glucose, an aldehydic group is present and it gives Schiff's test.

(C) Glycogen is also known as animal starch.

(D) Lactose is a reducing sugar.

• (A) (A), (B) and (D) only
• (B) (A), (B) and (C) only
• (C) (A), (C) and (D) only
• (D) (B), (C) and (D) only

Consider the following statements and choose the correct statements:

(A) The bond angle in methanol is slightly higher than the tetrahedral angle.

(B) The reaction of Grignard reagent with methanal produces a secondary alcohol.

(C) The boiling point of ethanol is higher than methoxymethane.

(D) Acetylation of salicylic acid produces Aspirin.

• (A) (A) and (D) only
• (B) (A) and (B) only
• (C) (B) and (C) only
• (D) (C) and (D) only

Arrange the following compounds in increasing order of their acid strength.

(A) Phenol

(B) \(m\)-Nitrophenol

(C) \(p\)-Nitrophenol

(D) \(p\)-Cresol

• (A) (A), (D), (B), (C)
• (B) (D), (A), (C), (B)
• (C) (D), (A), (B), (C)
• (D) (D), (B), (A), (C)

Which of the following reaction will not result in the formation of C-C bonds?

• (A) Wurtz reaction
• (B) Friedel-Crafts acylation reaction
• (C) Reimer-Tiemann reaction
• (D) Cannizzaro reaction

What is the final product X in the following reaction?
\[ \mathrm{CH_3CH_2CH_2CHO} \xrightarrow[(2)\ H_3O^+]{(1)\ Ammoniacal AgNO_3} X \]

• (A) \(\mathrm{CH_3CH_2CH_2CH_2NH_2}\)
• (B) \(\mathrm{CH_3CH_2CH_2COOH}\)
• (C) \(\mathrm{CH_3CH_2CH_2CH_2NO_2}\)
• (D) \(\mathrm{CH_3CH_2CH_2CH_3}\)

Match List-I with List-II.

• (A) (A)-(IV), (B)-(II), (C)-(III), (D)-(I)
• (B) (A)-(IV), (B)-(II), (C)-(I), (D)-(III)
• (C) (A)-(II), (B)-(IV), (C)-(I), (D)-(III)
• (D) (A)-(II), (B)-(IV), (C)-(III), (D)-(I)

IUPAC name of \([\mathrm{Co(NH_3)_4(H_2O)Cl}]Cl_2\) is:

• (A) Tetraammineaquachloridocobalt(II) chloride
• (B) Tetraammineaquachloridocobalt(III) chloride
• (C) Tetraammineaquachloridocobalt(I) chloride
• (D) Tetraammineaquachloridocobalt(0) chloride

\(75%\) of a first-order reaction was completed in \(32\) minutes. How long will it take to undergo \(50%\) completion? Given: \(\log 2 = 0.3010\)

• (A) \(8\) min
• (B) \(12\) min
• (C) \(16\) min
• (D) \(24\) min

Standard electrode potentials (\(\mathrm{M^{n+}/M}\)) of four metals A, B, C and D are given below:

(A) \(-1.2 V\)

(B) \(+0.5 V\)

(C) \(+1.2 V\)

(D) \(-3.0 V\)

The correct increasing order for the reducing power of these metals will be:

• (A) (D), (A), (C), (B)
• (B) (D), (A), (B), (C)
• (C) (C), (B), (A), (D)
• (D) (B), (C), (A), (D)

Choose the optically inactive amino acid from the following:

• (A) Glycine
• (B) Alanine
• (C) Leucine
• (D) Isoleucine

Match Ion given in List I with their Magnetic Moment (Calculated) given in List II.

• (A) (A)-(IV), (B)-(II), (C)-(I), (D)-(III)
• (B) (A)-(II), (B)-(IV), (C)-(I), (D)-(III)
• (C) (A)-(I), (B)-(II), (C)-(III), (D)-(IV)
• (D) (A)-(IV), (B)-(I), (C)-(II), (D)-(III)

What would be the product X in the following chemical reaction?

• (A) Salicylic acid
• (B) Benzoquinone
• (C) Salicylaldehyde
• (D) 4-Hydroxybenzoic acid

What are the hydrolysis products of Maltose?

• (A) \(\alpha\)-D-Glucose + \(\beta\)-D-Fructose
• (B) \(\alpha\)-D-Glucose + \(\beta\)-D-Glucose
• (C) \(\alpha\)-D-Glucose + \(\alpha\)-D-Glucose
• (D) \(\alpha\)-D-Galactose + \(\beta\)-D-Glucose

Select the correct assumptions in Crystal Field Theory (CFT) from the following:

(A) Ligands are treated as point charge or point dipole.

(B) The five \(d\) orbitals in an isolated gaseous metal atom are non-degenerate.

(C) Degeneracy of the \(d\) orbitals is restored with the approach of ligand towards metal.

(D) Metal-ligand bond is ionic arising purely from electrostatic interactions.

Choose the correct answer from the options given below:

• (A) (B) and (C) only
• (B) (A) and (D) only
• (C) (B), (C) and (D) only
• (D) (A), (B) and (D) only

Choose the symbol of a lanthanoid metal which is well known to exhibit \(+4\) oxidation state.

• (A) \(\mathrm{La}\)
• (B) \(\mathrm{Th}\)
• (C) \(\mathrm{Ce}\)
• (D) \(\mathrm{Cm}\)

Which of the following compounds does not undergo Cannizzaro reaction?

• (A) Formaldehyde
• (B) 2,2-Dimethylbutanal
• (C) Benzaldehyde
• (D) Acetaldehyde

What would be the major product A?

• (A) figA
• (B) figB
• (C) figC
• (D) figD

Which of the following statements are incorrect for thermodynamic properties?

(A) Both \(E_{cell}\) and \(\Delta_r G\) of reaction are extensive properties.

(B) Both \(E_{cell}\) and \(\Delta_r G\) of reaction are intensive properties.

(C) \(E_{cell}\) is an intensive property while \(\Delta_r G\) of reaction is an extensive property.

(D) \(E_{cell}\) is an extensive property while \(\Delta_r G\) of reaction is an intensive property.

Choose the answer from the options given below:

• (A) (A), (B) and (D) only
• (B) (A), (B) and (C) only
• (C) (B), (C) and (D) only
• (D) (A), (C) and (D) only

What would be the geometrical shape of \([\mathrm{NiCl_4}]^{2-}\) and \([\mathrm{PtCl_4}]^{2-}\) compounds?

• (A) Both \([\mathrm{NiCl_4}]^{2-}\) and \([\mathrm{PtCl_4}]^{2-}\) are square planar.
• (B) Both \([\mathrm{NiCl_4}]^{2-}\) and \([\mathrm{PtCl_4}]^{2-}\) are tetrahedral.
• (C) \([\mathrm{NiCl_4}]^{2-}\) is square planar while \([\mathrm{PtCl_4}]^{2-}\) is tetrahedral.
• (D) \([\mathrm{NiCl_4}]^{2-}\) is tetrahedral while \([\mathrm{PtCl_4}]^{2-}\) is square planar.

The major products A and B formed in the following reaction are:

• (A) \(A=\mathrm{CH_3CH_2CN}\), \(B=\mathrm{CH_3CH_2NC}\)
• (B) \(A=\mathrm{CH_3CH_2CN}\), \(B=\mathrm{CH_3CH_2CN}\)
• (C) \(A=\mathrm{CH_3CH_2NC}\), \(B=\mathrm{CH_3CH_2NC}\)
• (D) \(A=\mathrm{CH_3CH_2NC}\), \(B=\mathrm{CH_3CH_2CN}\)

Choose the transition element which exhibit least number of variable oxidation states.

• (A) \(\mathrm{Sc}\)
• (B) \(\mathrm{Cr}\)
• (C) \(\mathrm{Mn}\)
• (D) \(\mathrm{Fe}\)

The standard Gibbs energy for the reaction is \(-212.27\,\mathrm{kJ\,mol^{-1}}\).
\[ Zn(s)+Cu^{2+}(aq.) \rightarrow Zn^{2+}(aq.)+Cu(s) \]

The standard electrode potential \((E^\circ_{cell})\) for the Daniell cell is:

• (A) \(1.1 V\)
• (B) \(2.2 V\)
• (C) \(0.002 V\)
• (D) \(0.001 V\)

Choose the correct statements:

(A) For a gaseous reaction if the concentration of gas is expressed in terms of their partial pressure atm and time in minutes then unit of rate are \(\mathrm{atm\ min^{-1}}\).

(B) The sum of power of the concentration of the reactants in the rate law expression is called order of that reaction.

(C) The thermal decomposition of HI on gold surface is an example of second order reaction.

(D) The overall rate of the reaction is controlled by the slowest step in a reaction called the rate determining step.

Choose the correct answer from the options given below:

• (A) (A) and (B) only
• (B) (B) and (C) only
• (C) (C) and (D) only
• (D) (B) and (D) only

Match Reaction with Reagent Required:



Choose the correct answer from the options given below:

• (A) (A)-(III), (B)-(I), (C)-(IV), (D)-(II)
• (B) (A)-(I), (B)-(II), (C)-(IV), (D)-(III)
• (C) (A)-(IV), (B)-(I), (C)-(II), (D)-(III)
• (D) (A)-(III), (B)-(I), (C)-(II), (D)-(IV)

What would be the major product when propene reacts with water in presence of acid catalyst?

• (A) \(\mathrm{CH_3CH(OH)CH_3}\) (Propan-2-ol)
• (B) \(\mathrm{CH_3CH_2CH_2OH}\) (Propan-1-ol)
• (C) \(\mathrm{CH_3C(OH)_2CH_3}\)
• (D) \(\mathrm{CH_3CH_2CH_2COOH}\)

Match Structure with their Common Name:



Choose the correct answer from the options given below:

• (A) (A)-(I), (B)-(IV), (C)-(II), (D)-(III)
• (B) (A)-(I), (B)-(II), (C)-(IV), (D)-(III)
• (C) (A)-(III), (B)-(IV), (C)-(II), (D)-(I)
• (D) (A)-(III), (B)-(II), (C)-(IV), (D)-(I)

What would be the molality of \(1.5\,g\) of ethanoic acid (\(CH_3COOH\)) in \(75\,g\) of benzene?

• (A) \(0.55\ mol\,kg^{-1}\)
• (B) \(0.33\ mol\,kg^{-1}\)
• (C) \(0.44\ mol\,kg^{-1}\)
• (D) \(0.22\ mol\,kg^{-1}\)

Which one of the following is not correct for an ideal solution?

• (A) It must obey Raoult's law.
• (B) \(\Delta_{mix}H=0\)
• (C) \(\Delta_{mix}V=0\)
• (D) \(\Delta_{mix}H\neq0\), and \(\Delta_{mix}V=0\)

The vapour pressure of pure benzene at \(25^\circ C\) is \(0.950\) bar. When a \(0.5\,g\) non-volatile, non-electrolyte solute is added to \(39.0\,g\) of benzene (molar mass \(78\,g\,mol^{-1}\)), then the vapour pressure of solution becomes \(0.945\) bar. What is the molar mass of the solute?

• (A) \(170\,g\,mol^{-1}\)
• (B) \(190\,g\,mol^{-1}\)
• (C) \(210\,g\,mol^{-1}\)
• (D) \(180\,g\,mol^{-1}\)

The solution of acetone in ethanol:

• (A) shows positive deviation from Raoult's law.
• (B) shows negative deviation from Raoult's law.
• (C) obeys Raoult's law.
• (D) shows both negative and positive deviation from Raoult's law.

Which of the following concentration term is temperature dependent?

• (A) Molality
• (B) Mole fraction
• (C) Molarity
• (D) ppm

Select the correct order of boiling points of isomeric amines:

• (A) \(n-C_4H_9NH_2>(C_2H_5)_2NH>C_2H_5N(CH_3)_2\)
• (B) (n-C_4H_9NH_2<(C_2H_5)_2NH
• (C) \(n-C_4H_9NH_2=(C_2H_5)_2NH>C_2H_5N(CH_3)_2\)
• (D) \(n-C_4H_9NH_2>(C_2H_5)_2NH=C_2H_5N(CH_3)_2\)

Identify the tertiary amine (\(3^\circ\)) from the following compounds.

• (A) Ethylenediamine
• (B) \(N,N\)-Dimethylaniline
• (C) \(p\)-Toluidine
• (D) 2,4,6-Tribromoaniline

Identify the correct decreasing order of basic strength of amines in aqueous solution.

• (A) \((C_2H_5)_3N>(C_2H_5)_2NH>C_2H_5NH_2>NH_3\)
• (B) \(C_2H_5NH_2>(C_2H_5)_3N>(C_2H_5)_2NH>NH_3\)
• (C) \(NH_3>C_2H_5NH_2>(C_2H_5)_2NH>(C_2H_5)_3N\)
• (D) \((C_2H_5)_2NH>(C_2H_5)_3N>C_2H_5NH_2>NH_3\)

The final structure of amine produced by Hoffmann degradation of \(m\)-bromobenzamide is:

• (A) \(m\)-Bromobenzylamine
• (B) \(m\)-Bromoaniline
• (C) \(m\)-Bromotoluene derivatives
• (D) Aniline

What would be the structure of final product X in the following chemical reaction?

• (A) figA
• (B) figB
• (C) figC
• (D) figD