KCET 2026
KCET / 180 questions
2026Thu, Apr 23, 2026 5:00 AM180 PYQs
1Alcohol Phenols And Ethers
The correct IUPAC name of is
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2Alcohol Phenols And Ethers
Glycerol is a trihydric alcohol. It contains ____.
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3Alcohol Phenols And Ethers
$R-\text{CH}_2\text{OH}$ is converted into $R-\text{CHO}$ by reacting with ________.
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4Alcohol Phenols And Ethers
$\text{C}_3\text{H}_6 \xrightarrow{\large{(i)\text{ BH}_3;\ (ii)\text{ H}_2\text{O}_2/\text{NaOH}}} P \xrightarrow{\large{\text{CrO}_3,\text{ anhydrous medium}}} Q \xrightarrow{\large{(i)\text{ CH}_3\text{MgBr};\ (ii)\text{ H}_2\text{O}}} R...
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5Aldehyde And Ketone
The compound that does not answer iodoform test is
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6Aldehyde And Ketone
The major product '$A$' in the given reaction isBenzaldehyde $\xrightarrow{\large{\text{Acetophenone, OH}^-/293\text{K}}}$ '$A$' (Major product)
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7Aldehyde And Ketone
Match the reagents in List-I with products obtained from their carbonyl compounds in List-II.List-IList-II(a)$\text{NH}_2\text{OH}$(i)Cyanohydrin(b)$R-\text{NH}_2$(ii)Oxime(c)$R-\text{OH}$(iii)Schiff base(d)$H-C \equiv N$(iv)Acetal
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8Atomic Structure
Which of the following is the CORRECT statement about $\Psi^2$?
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9Atomic Structure
Which of the following represents de Broglie equation?
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10Biomolecules
Incorrect statement about $\alpha$-amino acids of proteins among the following is
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11Biomolecules
Consider the following statements:Statement-I: All monosaccharides are reducing sugars.Statement-II: Sucrose can reduce ammoniacal silver nitrate solution.Choose the correct answer from the options given below.
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12Biomolecules
Match List-I with List-IIList-I (Vitamins)List-II (Deficiency Diseases)(a)$\text{B}_1$(i)Convulsions(b)$\text{B}_2$(ii)RBC deficiency in haemoglobin(c)$\text{B}_6$(iii)Retarded growth(d)$\text{B}_{12}$(iv)Burning sensation of the skinChoose...
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13Carboxylic Acids And Its Derivatives
Carboxylic acids are more acidic than phenols because
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14Chemical Bonding And Molecular Structure
With respect to resonance structures of $\text{CO}_3^{2-}$ ion, which of the following statements are correct?(a) All $\text{C}-\text{O}$ bonds in $\text{CO}_3^{2-}$ are equivalent(b) There are three resonance structures possible for $\text...
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15Chemical Bonding And Molecular Structure
In which of the following option/options, the order of arrangement does not agree with the variation of property indicated against it?(a) $\text{BF}_3 > \text{NF}_3 > \text{NH}_3$ (Dipole moment)(b) $\text{HgCl}_2 > \text{NH}_4^+ > \text{SF...
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16Chemical Bonding And Molecular Structure
The types of hybrid orbitals of nitrogen in $\text{NO}_2^+, \text{NO}_3^-$ and $\text{NH}_4^+$ respectively are
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17Chemical Equilibrium
For the following gaseous reversible reaction:$3\text{A}_{(g)} + \text{B}_{(g)} \rightleftharpoons \text{A}_3\text{B}_{(g)} \quad (\Delta_r H = -q\text{ kJ})$. The amount of product $\text{A}_3\text{B}_{(g)}$ is affected by ____
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18Chemical Equilibrium
For the reversible reaction,$\text{N}_{2(g)} + 3\text{H}_{2(g)} \rightleftharpoons 2\text{NH}_{3(g)}$When the partial pressure is measured in atmosphere, the value of $K_p$ at $500^\circ\text{C}$ is $1.44 \times 10^{-5}$. The value of $K_c$...
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19Chemical Kinetics
The activation energy for the reaction $X \rightarrow Y$ is $150\text{ kJ mol}^{-1}$. The change in enthalpy for the above reaction is $-135\text{ kJ mol}^{-1}$. Then the activation energy for $Y \rightarrow X$ is
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20Chemical Kinetics
For a 1st order change $R \rightarrow P$, the concentration of Reactant R changes from $0.1$ M to $0.025$ M in $40$ minutes. The rate of reaction when the concentration of R is $0.01$ M is ____
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21Chemical Kinetics
For a reaction having three steps, the overall rate constant is $k = \dfrac{k_1 k_2}{k_3}$. The values of $E_{a_1}, E_{a_2}$ and $E_{a_3}$ (activation energies stepwise) are $40$, $50$ and $60$ kJ mol$^{-1}$ respectively. Then the overall $...
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22Chemical Kinetics
Which one of the following graph is not applicable for a 1st order reaction ($R \rightarrow P$)?
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23Chemistry In Everyday Life
Match the compounds of List-I with their effects in List-II:List-IList-II(a)Chloramphenicol(i)Malaria(b)Thyroxine(ii)Anaesthetic(c)Chloroquine(iii)Goiter(d)Chloroform(iv)Typhoid fever
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24Compounds Containing Nitrogen
Organic compound 'D' is
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25Compounds Containing Nitrogen
Basic strength of alkylamines in aqueous phase is not decided by ________.
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26Compounds Containing Nitrogen
Nitration of aniline in strong acidic medium gives significant amount of m-nitroaniline because
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27Coordination Compounds
Match List-I with List-IIList-I (Complex)List-II (Geometry)(a)$[\text{Co(NH}_3\text{)}_6]^{3+}$(i)Trigonal bipyramidal(b)$[\text{NiCl}_4]^{2-}$(ii)Octahedral(c)$[\text{Ni(CN)}_4]^{2-}$(iii)Tetrahedral(d)$[\text{Fe(CO)}_5]$(iv)Square planarC...
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28Coordination Compounds
Given below are two statements:Statement-I: The $\text{M}-\text{C}$ $\sigma$ bond is formed by the donation of lone pair of electrons on the carbonyl carbon into a vacant d-orbital of the metal.Statement-II: The $\text{M}-\text{C}$ $\pi$ bo...
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29Coordination Compounds
How many ions per molecule are produced from the complex $[\text{Co(NH}_3\text{)}_6]\text{Cl}_2$ in solution?
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30Coordination Compounds
Which of the following is the most stable complex ion?
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31D And F Block Elements
The calculated spin only magnetic moment of $\text{Cr}^{2+}$ ion is
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32D And F Block Elements
The highest oxidation state of manganese in fluoride is $+4$ ($\text{MnF}_4$), but the highest oxidation state in oxides is $+7$ ($\text{Mn}_2\text{O}_7$), because
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33D And F Block Elements
Which of the following will not act as an oxidising agent?
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34Electrochemistry
The conductivity of centimolar solution of KCl at $298$ K is $0.021\text{ Ohm}^{-1}\text{cm}^{-1}$ and the resistance of the cell containing the solution at $298$ K is $60\,\Omega$. The value of cell constant ($G^*$) is __________.
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35Electrochemistry
Given below are the half-cell reactions:$\text{Mn}^{2+} + 2e^- \rightarrow \text{Mn} \quad (E^0 = -1.18\text{ V})$$2(\text{Mn}^{3+} + e^- \rightarrow \text{Mn}^{2+}) \quad (E^0 = +1.51\text{ V})$The $E^0_{cell}$ for $3\text{Mn}^{2+} \righta...
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36Electrochemistry
$\Lambda^0_{m(\text{NH}_4\text{OH})}$ is equal to ____
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37Electrochemistry
During the electrolysis of acidified water, $16$ g of $\text{O}_2$ gas is formed at anode. The volume of $\text{H}_2$ gas liberated at cathode under STP conditions is
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38General Organic Chemistry
The intermediates in heteropolar reactions are
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39Haloalkanes And Haloarenes
$\text{C}-\text{Cl}$ bond in methyl chloride compared to $\text{C}-\text{Cl}$ bond in chlorobenzene is
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40Haloalkanes And Haloarenes
In $\text{S}_\text{N}1$ reaction, the alkyl halide that on hydrolysis produces racemic mixture is
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41Haloalkanes And Haloarenes
The compound from which chlorobenzene cannot be prepared easily is
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42Hydrocarbons
Statement I: Staggered conformation of ethane is more stable than the eclipsed conformation.Statement II: The torsional strain in staggered conformation is more.Read the above statements and choose the correct answer from the options given ...
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43Ionic Equilibrum
A $0.15$ mole of pyridinium chloride has been added to $500\text{ cm}^3$ of $0.2$ M pyridine solution (a base). Assuming there is no change in volume upon mixing(Given: $pK_b$ of pyridine = 8.82), the pH of the resulting solution is
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44Isomerism
The number of chain isomers possible for the hydrocarbon with molecular formula $\text{C}_5\text{H}_{12}$ is
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45Iupac Nomenclature
The compound with molecular formula $\text{C}_{20}\text{H}_{42}$ is
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46Liquid Solution
The relative lowering of vapour pressure produced by dissolving $18$ g of urea (Molar mass $= 60\text{ g mol}^{-1}$) in $100$ g of water is
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47Liquid Solution
When $0.0106$ mole of acetic acid was dissolved in $1$ kg of water, the freezing point depression for this strength of acid was $0.0205$ K. If the calculated freezing point depression is $0.0197$ K, Van't Hoff factor (i) and degree of disso...
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48Liquid Solution
Match List-I (Laws) with the List-II (Mathematical expressions):List-IList-II(a)Henry's law(i)$p_1 = p_1^0 x_1$(b)Raoult's law(ii)$p = K_H \chi$(c)First law of thermodynamics(iii)$\Lambda_m = v_+ \lambda_+ + v_- \lambda_-$(d)Kohlrausch's la...
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49Liquid Solution
Which of the following is CORRECT with respect to the property mentioned against it?
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50Periodic Table And Periodicity
Match List-I with List-II:List-I (Element-Atomic number)List-II (Position in periodic table)(a)Ra – 88(i)$4^{th}$ period, $13^{th}$ group(b)Ga – 31(ii)$6^{th}$ period, $6^{th}$ group(c)W – 74(iii)$5^{th}$ period, $10^{th}$ group(d)Pd – 46(i...
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