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AP EAPCET 2021 - 20th August Morning Shift

AP EAPCET / 40 questions

2025Fri, Aug 20, 2021 3:30 AM40 PYQs
1Aldehyde And Ketone
Identify (Z) in the following reaction.
\(\mathrm{C{H_3}COOH\buildrel {LiAl{H_4}} \over \longrightarrow (X)\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{573\,K}^{Cu}} (Y)\buildrel {dil.\,NaOH} \over \longrightarrow (Z)}\)
MCQ+1 / -02021
2Atomic Structure
The number of protons, neutrons and electrons in \(_6^{13}\)C respectively are
MCQ+1 / -02021
3Atomic Structure
The masses of an electron, a proton and a neutron respectively will be n the ratio
MCQ+1 / -02021
4Atomic Structure
Match the following species with the correct number of electrons present in them.

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MCQ+1 / -02021
5Biomolecules
Vitamin-B\(_1\) is
MCQ+1 / -02021
6Carboxylic Acids And Its Derivatives
The correct order of acidic strength among the following is
MCQ+1 / -02021
7Chemical Bonding And Molecular Structure
The correct order of electronegativity of carbon in various hybridisation states is
MCQ+1 / -02021
8Chemical Bonding And Molecular Structure
Bond order is an inverse measure of
MCQ+1 / -02021
9Chemical Bonding And Molecular Structure
Which of the following molecule has the maximum dipole moment?
MCQ+1 / -02021
10Chemical Bonding And Molecular Structure
Which compound among the following will
have a permanent dipole moment?
MCQ+1 / -02021
11Chemical Bonding And Molecular Structure
The correct order of sulphur-oxygen bond in \(\mathrm{SO}_3, \mathrm{~S}_2 \mathrm{O}_3^{2-}\) and \(\mathrm{SO}_4^{2-}\) is
MCQ+1 / -02021
12Chemical Equilibrium
At \(60^{\circ} \mathrm{C}\), dinitrogen tetroxide is dissociated. Find it's standard free energy change at this temperature and one atmosphere. [Given \(\log 1.33=0.1239\)]
MCQ+1 / -02021
13Chemical Equilibrium
Le-Chatelier's principle is not applicable to
MCQ+1 / -02021
14Chemical Kinetics
Which statement among the following is incorrect?
MCQ+1 / -02021
15Chemical Kinetics
For zero order reaction, a plot of \(t_{1 / 2}\) versus
\([A]_0\) will be
MCQ+1 / -02021
16Compounds Containing Nitrogen
Using Kjeldahl’s method over 1g of a soil
sample, the ammonia evolved could neutralise
25 mL of 1 M H\(_2\)SO\(_4\). Then, the percentage of
nitrogen present in the sample is
MCQ+1 / -02021
17Coordination Compounds
\(\mathrm{AlF}_3\) is soluble in HF only in the presence of KF due to formation of
MCQ+1 / -02021
18Coordination Compounds
Potassium cyanide is made alkaline with
NaOH and boiled with thiosulphate ions.
The solution is cooled and acidified with HCl
and this solution with iron (III) chloride
produces
MCQ+1 / -02021
19Coordination Compounds
Which of the following complexes formed by nickel is tetrahedral and paramagnetic?
MCQ+1 / -02021
20D And F Block Elements
Which of the following is not arranged in the correct sequence?
MCQ+1 / -02021
21D And F Block Elements
Which among the following is coloured?
MCQ+1 / -02021
22Electrochemistry
If hydrogen electrons dipped in two solutions
of pH = 3 and pH = 6 are connected by a salt
bridge, the emf of the resulting cell is
MCQ+1 / -02021
23Environmental Chemistry
Which among the following is not a greenhouse gas?
MCQ+1 / -02021
24General Organic Chemistry
Which compound among the following is
most reactive towards electrophilic reagents?
MCQ+1 / -02021
25General Organic Chemistry
Which of the following is not explained by hyperconjugation?
MCQ+1 / -02021
26General Organic Chemistry
Identify the product of the following reaction.
MCQ+1 / -02021
27Haloalkanes And Haloarenes
An organic compound of molecular formula
\(\mathrm{C_6H_6Br_2}\) has six carbon atoms in a ring
system, two non-conjugate double bonds and
two bromo groups at 1, 4-positions. Then the
compound is
MCQ+1 / -02021
28Haloalkanes And Haloarenes
Identify the major product of the following reaction.
MCQ+1 / -02021
29Ionic Equilibrum
The solubility of \(\operatorname{AgBr}(s)\), having solubility product \(5 \times 10^{-10}\) in \(0.2 \mathrm{~M} \mathrm{~NaBr}\) solution equals
MCQ+1 / -02021
30Liquid Solution
If the \(K_{\mathrm{H}}\) values for \(\operatorname{Ar}(g), \mathrm{CO}_2(g), \mathrm{HCHO}(g)\) and \(\mathrm{CH}_4(\mathrm{~g})\) respectively are \(40.39,1.67, 1.83 \times 10^{-5}\) and \(0.413\) , then identify the correct increasing o...
MCQ+1 / -02021
31Liquid Solution
If 500 mL of CaCl\(_2\) solution contains 3.01 \(\times\) 10\(^{22}\) chloride ions, molarity of the solution will be
MCQ+1 / -02021
32P Block Elements
What would be the product of following reaction?
\(\mathrm{SiCl}_4 \stackrel{\text { Excess of } \mathrm{H}_2 \mathrm{O}}{\longrightarrow} \text { ? (Major product) }\)
MCQ+1 / -02021
33Redox Reactions
Which of the following statement is incorrect?
MCQ+1 / -02021
34Redox Reactions
Which among the following species does not show disproportionation reaction?
MCQ+1 / -02021
35S Block Elements
Which of the following does not form double
salts?
MCQ+1 / -02021
36Solid State
In the face centered unit cell, the lattice points are present at
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37Some Basic Concepts Of Chemistry
An alloy of metals X and Y weighs 12 g and
contains atoms X and Y in the ratio of 2 : 5.
The percentage of metal X in the alloy is 20
by mass. If the atomic mass of X is 40 amu
what is the atomic mass of metal Y ?
MCQ+1 / -02021
38States Of Matter
Which among the following statements is/are
incorrect regarding real gases?
(i) Their compressibility factor is never equal
to unity (Z \(\ne\) 1).
(ii) The deviations from ideal behaviour are
less at low pressures and high temperatures.
(i...
MCQ+1 / -02021
39Surface Chemistry
In an adsorption experiment, a graph between \(\log (x / m)\) versus \(\log p\) was found to be linear with a slope of \(45^{\circ}\). The intercept on \(\log (x / m)\) axis was found to be 0.3010. The amount of gas adsorbed per gram of cha...
MCQ+1 / -02021
40Thermodynamics
For the reaction, \(\mathrm{H}_2 \mathrm{O}(l) \longrightarrow \mathrm{H}_2 \mathrm{O}(\mathrm{g})\) at \(T=100^{\circ} \mathrm{C}\) and \(p=1 \mathrm{~atm}\), choose the correct option.
MCQ+1 / -02021

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