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TS EAMCET 2020 (Online) 10th September Morning Shift

TS EAMCET / 40 questions

2025Thu, Sep 10, 2020 3:30 AM40 PYQs
1Alcohol Phenols And Ethers
\(\text { The major products } P \text { and } Q \text { in the following reactions are }\)
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2Alcohol Phenols And Ethers
\(\text { Which of the following gives alcohol/phenol products? }\)
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3Atomic Structure
Wavelength of $\mathrm{H}^{+}$ion with kinetic energy 1.65 eV is (mass of proton $=1.6726 \times 10^{-27} \mathrm{~kg}$ )
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4Atomic Structure
The degeneracy of the level of hydrogen atoms that contain the energy of $\left(\frac{-R_{\mathrm{H}}}{16}\right)$ is
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5Biomolecules
Amino acids containing heterocyclic ring are
(i) Histidine
(ii) Valine
(iii) Arginine
(iv) Proline
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6Carboxylic Acids And Its Derivatives
\(\text { In the following reactions, } P, Q \text { and } R \text { are }\)
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7Chemical Bonding And Molecular Structure
\(\text { Match the following : }\)






List-I

List-II





A.





BF



3







BF<...
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8Chemical Bonding And Molecular Structure
Which of the following molecules does not exist according to molecular orbital theory?
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9Chemical Bonding And Molecular Structure
What is the nature of the bonding in anhydrous $\mathrm{AlCl}_3$ and hydrated $\mathrm{AlCl}_3$ respectively?
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10Chemical Equilibrium
The vapour density of $\mathrm{N}_2 \mathrm{O}_4$ in $\mathrm{N}_2 \mathrm{O}_4 \rightleftharpoons 2 \mathrm{NO}_2$ is 40 . The degree of dissociation is
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11Chemical Equilibrium
What is the equilibrium constant $\left(K_C\right)$ for the given reaction?
\(\mathrm{N}_2+\mathrm{O}_2 \rightleftharpoons 2 \mathrm{NO}\)
Where the equilibrium concentration of $\mathrm{N}_2, \mathrm{O}_2$ and NO are found to be $4 \time...
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12Chemical Kinetics
For a zero order reaction, the plot of concentration of reactant vs time is (Hint: Consider the intercept on the concentration axis)
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13Chemistry In Everyday Life
Which among the following is an arsenic based antibiotic drug, for which Paul Ehrlich was awarded Noble prize in 1908.
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14Compounds Containing Nitrogen
\(\text { Following transformation can be accomplished by }\)
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15Coordination Compounds
$A^{2+}, B^{2+}$ and $C^{-}$form an ionic complex like $A_{x-2}\left[B(C)_x\right]_2$. If the complex is $75 \%$ dissociated in a solvent with $i=4$, the coordination number of $B$ is
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16Coordination Compounds
Which of the following molecules is colourless?
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17D And F Block Elements
Which of the following statement is not true about interstitial complexes?
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18Electrochemistry
The standard electrode potentials of $\mathrm{Ag}^{+} / \mathrm{Ag}$ is +0.80 V and $\mathrm{Cu}^{+} / \mathrm{Cu}$ is +0.34 V . If these electrodes are connected through a salt-bridge, which of the following statements is correct?
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19Environmental Chemistry
Biochemical oxygen demand (BOD) is a measure of organic materials present in water, BOD value less than 5 ppm indicates a water sample to be
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20Haloalkanes And Haloarenes
\(\text { The major product in the following reaction sequence is }\)
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21Hydrocarbons
Which one of the following methods is suitable to generate aromatic compound(s) from linear aliphatic saturated hydrocarbons with at least six carbon atoms?
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22Hydrocarbons
Ethyl phenyl acetylene (1-phenyl-1-butyne) on reduction with partially deactiveated palladised charcoal (Lindlar's catalyst) gives
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23Hydrogen And Its Compounds
What is the $\%$ strength of 22.4 volume of $\mathrm{H}_2 \mathrm{O}_2$ solution?
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24Hydrogen And Its Compounds
Hard water contains ion of
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25Liquid Solution
The freezing point of equimolal aqueous solution will be highest for
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26Metallurgy
Which one of the following ores does not contain iron?
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27P Block Elements
Which of the following elements reacts with water?
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28P Block Elements
When copper metal is treated with cold and dilute nitric acid, it forms
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29P Block Elements
Which one of the following is not a colourless compound?
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30Periodic Table And Periodicity
Assertion (A) $\mathrm{Mg}^{2+}$ and $\mathrm{Al}^{3+}$ are isoelectronic but the magnitude of ionic radius of $\mathrm{Al}^{3+}$ is less than that in $\mathrm{Mg}^{2+}$.
Reason (R) The effective nuclear charge on the outermost electrons in...
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31Periodic Table And Periodicity
The successive ionisation energy values for an element ' $X$ ' are given below :
(i) 1st ionisation energy $=410 \mathrm{~kJ} \mathrm{~mol}^{-1}$
(ii) 2nd ionisation energy $=820 \mathrm{~kJ} \mathrm{~mol}^{-1}$
(iii) 3rd ionisation energy ...
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32Polymers
Which of the following vinyl derivatives is the most reactive towards anionic polymerisation?
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33Practical Organic Chemistry
Sodium fusion extract of aniline when heated with ferrous sulphate solution and then acidified with concentrated $\mathrm{H}_2 \mathrm{SO}_4$ from which of the following complexes?
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34Redox Reactions
$\mathrm{KMnO}_4$ oxidises $\mathrm{C}_2 \mathrm{H}_2 \mathrm{O}_4$ to form $\mathrm{CO}_2$. In which of the following, the reaction will be faster?
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35S Block Elements
Predict the feasibility of the given reactions in aqueous solution
(i) $\mathrm{Be}(\mathrm{OH})_2+2 \mathrm{OH}^{-} \longrightarrow\left[\mathrm{Be}(\mathrm{OH})_4\right]^{2-}$
(ii) $\mathrm{Be}(\mathrm{OH})_2+2 \mathrm{H}^{+} \longrightar...
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36Solid State
Copper crystallises in ccp arrangement and accepted value of metal ion radius was found to be $1.14 \mathop {\rm{A}}\limits^{\rm{o}}$. Calculate the density of copper in grams per cubic centimetre. (Atomic weight of copper is 64 , $N_A=6 \t...
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37States Of Matter
Root mean square ( rms ) speed of $\mathrm{O}_2$ is $500 \mathrm{~m} / \mathrm{s}$ at a constant temperature. Calculate the rms speed and the average kinetic energy of $\mathrm{H}_2$ at the same temperature. (Consider, $R=8.33 \mathrm{JK}^{...
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38States Of Matter
Which of the following describes an ideal gas?
(i) The volume occupied by a gas molecule is negligible.
(ii) The collision between ideal gases are elastic.
(iii) Particles are very small compared to the distance between each other.
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39Surface Chemistry
The gold numbers of gelatin, haemoglobin and sodium acetate are $5 \times 10^{-3}, 5 \times 10^{-2}$ and $7 \times 10^{-1}$, respectively. The protective actions will be in the order
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40Thermodynamics
$\Delta H$ and $\Delta S$ for a reaction are $+30.0 \mathrm{~kJ} \mathrm{~mol}^{-1}$ and 0.06 $\mathrm{kJK}^{-1} \mathrm{~mol}^{-1}$ at 1 atm pressure. The temperature at which free energy change is equal to zero and nature of the reaction ...
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