KCET 2017
KCET / 60 questions
2026Tue, May 2, 2017 5:00 AM60 PYQs
1Alcohol Phenols And Ethers
Which of the following order is true regarding the acidic nature of phenol?
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2Alcohol Phenols And Ethers
Which of the following reagent cannot be used to oxidise primary alcohols to aldehydes?
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3Alcohol Phenols And Ethers
The product formed during the following reaction are
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4Alcohol Phenols And Ethers
In the following sequence of reactions
\(\mathrm{CH}_3 \mathrm{Br} \xrightarrow{\mathrm{KCN}} A \xrightarrow{\mathrm{H}_3 \mathrm{O}^{-}} B \xrightarrow{\mathrm{LiAl} / \mathrm{H}_4}\)
The end product $C$ is
\(\mathrm{CH}_3 \mathrm{Br} \xrightarrow{\mathrm{KCN}} A \xrightarrow{\mathrm{H}_3 \mathrm{O}^{-}} B \xrightarrow{\mathrm{LiAl} / \mathrm{H}_4}\)
The end product $C$ is
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5Aldehyde And Ketone
Reduction of ketones cannot be carried out with which of the following reagents?
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6Aldehyde And Ketone
Cannizzaro's reaction is an example of auto oxidation
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7Atomic Structure
The correct set of quantum number for the unpaired electrons of chlorine atom is
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8Biomolecules
Hormones are secreted by ductless glands of human body. Iodine containing hormone is
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9Biomolecules
The glycosidic linkage present in sucrose is between
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10Biomolecules
Pick the wrong statements from the following.
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11Carboxylic Acids And Its Derivatives
Lower members of aliphatic carboxylic acid are soluble in water. This is due to
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12Chemical Bonding And Molecular Structure
Which of the following elements forms $p_\pi-p_\pi$ bond with itself?
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13Chemical Bonding And Molecular Structure
Which of the following structure of a molecule is expected to have three bond pairs and one lone pair of electrons?
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14Chemical Bonding And Molecular Structure
Which of the following is correct electron dot structure of $\mathrm{N}_2 \mathrm{O}$ molecule?
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15Chemical Equilibrium
The equilibrium constant for the reaction $\mathrm{N}_2(g)+\mathrm{O}_2(g) \rightleftharpoons 2 \mathrm{NO}(\mathrm{g})$ is $4 \times 10^{-4}$ at 2000 K . In presence of a catalyst the equilibrium is attained ten times faster. Therefore the...
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16Chemical Equilibrium
The reaction quotient ' $Q$ ' is useful inpredicting the direction of the reaction. Which of the following is incorrect?
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17Chemical Kinetics
For a reaction $\frac{1}{2} A \rightarrow 2 B$ rate of disappearance of $A$ is related to rate of appearance of $B$ by the expression
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18Chemical Kinetics
Which of the following statement is in accordance with the Arrhenius equations?
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19Chemical Kinetics
Which of the following statement is incorrect?
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20Chemistry In Everyday Life
Bactericidal antibiotics among the following is
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21Compounds Containing Nitrogen
The correct order of increasing basic nature for the bases $\mathrm{NH}_3, \mathrm{CH}_3 \mathrm{NH}_2$ and $\left(\mathrm{CH}_3\right)_2 \mathrm{NH}$ in aqueous solutions
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22Compounds Containing Nitrogen
Galbriel phthalimide synthesis is used in the preparation of primary amine from phthalimide, which of the following reagent is not used during the process?
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23Coordination Compounds
According to crystal field theory, the $M-L$ bond in a complex is
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24Coordination Compounds
The coordination number and the oxidation state of the. element ' $M$ ' in the complex $\left[\mathrm{M}(e n)_2\left(\mathrm{C}_2 \mathrm{O}_4\right)\right] \mathrm{NO}_2$ {where (en) is ethan1, 2-diamine) are respectively
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25Coordination Compounds
Square planar complex of the type $M_{\text {AXBL }}$ (where $A, B, X$ and $L$ ) are unidenate ligands shows following set of isomers
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26D And F Block Elements
Which of the following statement is wrong regarding lanthanoids?
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27D And F Block Elements
The magnetic nature of elements depends on the presence of unpaired electrons. Identify the configuration of transition elements which shows highest magnetic moment?
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28Electrochemistry
The standard reduction potential at 298 K for the following half cell reaction
$$ \begin{aligned} & 2 \mathrm{n}^{2+}(a q)+2 e^{-} \rightarrow \mathrm{Zn}(s) ; E^0=-0.762 \mathrm{~V} \\ & \mathrm{Cr}^{3+}(a q)+3 e^{-} \rightarrow \mathrm{Cr...
$$ \begin{aligned} & 2 \mathrm{n}^{2+}(a q)+2 e^{-} \rightarrow \mathrm{Zn}(s) ; E^0=-0.762 \mathrm{~V} \\ & \mathrm{Cr}^{3+}(a q)+3 e^{-} \rightarrow \mathrm{Cr...
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29Electrochemistry
By passing electric current, $\mathrm{NaClO}_3$ is converted in to $\mathrm{NaClO}_4$ according to the following equation
\(\mathrm{NaClO}_3+\mathrm{H}_2 \mathrm{O} \longrightarrow \mathrm{NaClO}_4+\mathrm{H}_2\)
How many moles of $\mathr...
\(\mathrm{NaClO}_3+\mathrm{H}_2 \mathrm{O} \longrightarrow \mathrm{NaClO}_4+\mathrm{H}_2\)
How many moles of $\mathr...
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30Electrochemistry
In the electrolysis of aqueous sodium chloride solution, which of the half cell reaction will occur at anode?
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31Environmental Chemistry
Which one of the following is not a common component of photo-chemical smog?
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32General Organic Chemistry
In which of the following, homolytic bond fission takes place?
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33Haloalkanes And Haloarenes
Toluene reacts with halogen in presence of iron (III) chloride giving ortho and para halo compounds. The reaction is
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34Hydrocarbons
For the preparation of alkanes, aqueous solution of sodium of potassium salt of carboxylic acid is subjected to
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35Hydrogen And Its Compounds
In the manufacture of hydrogen from water gas $\left(\mathrm{CO}+\mathrm{H}_2\right)$, which of the following is correct statement?
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36Isomerism
Identify the correct statement in the following.
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37Liquid Solution
When the pure solvent diffuses out of the solution through the semi-permeable membrane then the process is called
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38Liquid Solution
The, vant Hoff's factor ' $\boldsymbol{i}$ ' accounts for
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39Liquid Solution
Which of the following aqueous solution has highest freezing point?
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40Metallurgy
The metal extracted by leaching with a cyanide is
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41P Block Elements
Plaster of Paris is represented as
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42P Block Elements
Addition of mineral acid to an aqueous solution of borax, the following compound is formed
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43Periodic Table And Periodicity
Which one of the following noble gas has an unusual property of diffusing through the materials such as rubber, glass or plastic?
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44Periodic Table And Periodicity
The electronegativities of $\mathrm{C}, \mathrm{N}, \mathrm{Si}$ and P are in the order of
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45Polymers
Which of the following is not a biodegradable polymer?
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46Polymers
The monomer used in novolac, a polymer used in paints
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47Redox Reactions
Extraction of chlorine from brine solution is based on
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48Redox Reactions
$3 \mathrm{ClO}^{-}(a q) \longrightarrow \mathrm{ClO}^{-}+2 \mathrm{Cl}^{-}$is an example of
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49S Block Elements
Which of the following metallic oxide exhibit amphoteric nature?
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50Solid State
Which of the following crystal has unit cell such that $a \neq b \neq c$ and $\alpha \neq \beta \neq \gamma \neq 90^{\circ}$ ?
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