This document provides the questions and solutions from the Chemistry Paper I section of the JEE Advanced 2013 exam. It includes 30 multiple choice questions in Section I, 5 multi-select questions in Section II, and 5 integer-value questions in Section III, along with the explanations for each answer. The questions cover topics in chemistry including thermodynamics, kinetics, equilibrium, organic chemistry, and coordination compounds.
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Committed to excellence...
With best wishes.
S . Iqbal
( Motivator & Mentor)
Dear Students/Parents
We at 'Apex Institute' are committed to provide our students best quality education with ethics. Moving in this direction, we have decided that unlike other expensive and 5star facility type institutes who are huge investors and advertisers, we shall not invest huge amount of money in advertisements. It shall rather be invested on the betterment, enhancement of quality and resources at our center.
We are just looking forward to have 'word-of-mouth' publicity instead. Because, there is only a satisfied student and his/her parents can judge an institute's quality and it's faculty members coaching.
Those coaching institutes, who are investing highly on advertisements, are actually, wasting their money on it, in a sense. Rather, the money should be invested on highly experienced faculty members and on teaching gears.
We all at 'Apex' are taking this initiative to improve the quality of education along-with each student's development and growth.
Committed to excellence...
With best wishes.
S . Iqbal
( Motivator & Mentor)
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
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UI automation Introduction,
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Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
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The IoT and OT threat landscape report has been prepared by the Threat Research Team at Sectrio using data from Sectrio, cyber threat intelligence farming facilities spread across over 85 cities around the world. In addition, Sectrio also runs AI-based advanced threat and payload engagement facilities that serve as sinks to attract and engage sophisticated threat actors, and newer malware including new variants and latent threats that are at an earlier stage of development.
The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
Download the full report from here:
https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
PHP Frameworks: I want to break free (IPC Berlin 2024)Ralf Eggert
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This talk is aimed at encouraging a more independent approach to using PHP frameworks, moving towards a more flexible and future-proof approach to PHP development.
Essentials of Automations: Optimizing FME Workflows with ParametersSafe Software
Are you looking to streamline your workflows and boost your projects’ efficiency? Do you find yourself searching for ways to add flexibility and control over your FME workflows? If so, you’re in the right place.
Join us for an insightful dive into the world of FME parameters, a critical element in optimizing workflow efficiency. This webinar marks the beginning of our three-part “Essentials of Automation” series. This first webinar is designed to equip you with the knowledge and skills to utilize parameters effectively: enhancing the flexibility, maintainability, and user control of your FME projects.
Here’s what you’ll gain:
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In a second workflow supporting the same use case, you’ll see:
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This video focuses on the notifications, alerts, and approval requests using Slack for Bonterra Impact Management. The solutions covered in this webinar can also be deployed for Microsoft Teams.
Interested in deploying notification automations for Bonterra Impact Management? Contact us at sales@sidekicksolutionsllc.com to discuss next steps.
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https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
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Prerna Jee advance2013 chemical Paper 1
1. JEE Advanced 2013 (02Jun13) Question & Solutions PaperI 1 www. prernaclasses.com
Chemistry Paper I Jee Advance 2013
R
Prerna Tower, Road No 2, Contractors Area, Bistupur, Jamshedpur 831001, Tel (0657)2221892, www.prernaclasses.com
PART II CHEMISTRY
SECTION I (Only One option Correct Type)
This section contains 10 multiple choice questions. Each question has four choices (A), (B),
(C) and (D) out of which ONLY ONE is correct.
21. Methylene blue, from its aqueous solution, is adsorbed on activated charcoal at 25°C. For this
process, the correct statement is:
(A) The adsorption requires activation at 25°C.
(B) The adsorption is accompanied by a decrease in enthalpy.
(C) The adsorption increases with increase of temperature.
(D) The adsorption is irreversible.
21. (B) It is physisorption. It is reversible and rate decreases with rise in temperature. Adsorption
is exothermic so DH = – ve
22. Upon treatment with ammoniacal H 2 S, the metal ion that precipitates as a sulfide is
(A) Fe(III) (B) Al (III) (C) Mg (II) (D) Zn (II)
22. (D) Zn 2+ is a group IV radical which only precipitates with ammonical medium because
the K sp value for ZnS is more
23. In the reaction,
[Q]0
[Q]
Time
P + Q ® R + S
the time taken for 75% reaction of P is twice the time taken for 50% reaction of P. The
concentration of Q varies with reaction time as shown in the figure. The overall order of the
reaction is
(A) 2 (B) 3 (C) 0 (D) 1
23. (D) Order with respect to P is ‘1’ as t½ is constant
Order with respect to Q is ‘0’ as concentration varies linearly with time.
So overall order is 1 + 0 = 1.
2. JEE Advanced 2013 (02Jun13) Question & Solutions PaperI 2 www. prernaclasses.com
24. KI in acetone, undergoes S N 2 reaction with each P, Q, R and S. The rates of the reaction vary as
H3C Cl
P Q
Cl
Cl
R
O
Cl
S
(A) P > Q > R > S (B) S > P > R > Q
(C) P > R > Q > S (D) R > P > S > Q
24. (B) ‘S’ has highest S N 2 reactivity due to neighbouring group participation.
25. The standard enthalpies of formation of CO 2 (g), H 2 O(l) and glucose(s) at 25°C are
– 400 kJ/mol, – 300 kJ/ mol and – 1300 kJ/ mol, respectively. The standard enthalpy of combustion
per gram of glucose at 25°C is
(A) + 2900 kJ (B) – 2900 kJ (C) – 16.11 kJ (D) + 16.11 kJ
25. (C) C 6 H 12 O 6 + 6O 2 ® 6CO 2 + 6H 2 O
DH C = 6 × (– 300) + 6 × (– 400) – ( – 1300) = – 2900 kJ / mol.
Standard enthalpy of combustion per gram of glucose = – 2900 / 180 = – 16.11 kJ
26. Consider the following complex ions, P, Q and R
P = [FeF 6 ] 3– , Q = [V(H 2 O) 6 ] 2+ and R = [Fe(H 2 O) 6 ] 2+
The correct order of the complex ions, according to their spinonly magnetic moment values
(in B.M) is
(A) R <Q < P (B) Q <R < P (C) R < P < Q (D) Q < P < R
26. (B) [FeF 6 ] 3– Þ Fe 3+ has 5 unpaired electron
[V(H 2 O) 6 ] 2+ Þ V 2+ has 3 unpaired electron
[Fe(H 2 O) 6 ] 2+ Þ Fe 2+ has 4 unpaired electron
27. The compound that does NOT liberate CO 2 ,on treatment with aqueous sodium bicarbonate
solution, is
(A) Benzoic acid (B) Benzenesulphonic acid
(C) Salicylic acid (D) Carbolic acid (phenol)
27. (D) Phenol does not react with aqueous NaHCO 3 due to low acidity.
28. Sulfide ores are common for the metals
(A) Ag, Cu and Pb (B) Ag, Cu and Sn
(C) Ag, Mg and Pb (D) Al, Cu and Pb
28. (A) Sulphide ores are common for less electropositive metals like Ag, Cu, Pb
3. JEE Advanced 2013 (02Jun13) Question & Solutions PaperI 3 www. prernaclasses.com
29. The arrangment of X – ions around A + ion in solid AX is given in the figure (not drawn to scale).
If the radius of X – is 250 pm, the radius of A + is
(A) 104 pm (B) 125 pm (C) 183 pm (D) 57 pm
X-
A +
29. (A) The given structure shows that A + is present in octahedral void made by X – .
r + / r – = 0.414 Þ r + / 250 = 0.414 Þ r + = 104 pm.
30. Concentrated nitric acid, upon long standing, turns yellowbrown due to the formation of
(A) NO (B) NO 2 (C) N 2 O (D) N 2 O 4
30. (B) Concentrated nitric acid upon long standing turns yellowbrown due to dissolved NO 2 .
4. JEE Advanced 2013 (02Jun13) Question & Solutions PaperI 4 www. prernaclasses.com
SECTION II (One or more options correct Type)
This section contains 5 multiple choice questions.
Each question has four choices (A), (B), (C) and (D), out of which ONE OR MORE are correct.
31. Among P, Q, R and S, the aromatic compound(s) is/are
(A) P (B) Q (C) R (D) S
Cl
P AlCl
¾¾ ®¾ 3
Q NaH
¾¾ ®¾
O O
R CO NH
C 115 100
) (
°-
¾¾¾¾ ®¾ 3 2 4
O
S HCl
¾¾ ®¾
31. (ABCD)
Cl
¾¾ ®¾ 3 AlCl
+ AlCl4
-
+
(Aromatic)
; ¾¾ ®¾NaH
+ H2
Na +-
(aromatic)
O O
(NH4)2CO3
N
H
100 115°C
(Aromatic )
; (Paal Knorr Pyrrole Synthesis)
O
¾¾ ®¾HCl
OH
Cl-+
(aromatic)
32. The initial rate of hydrolysis of methyl acetate (1M) by a weak acid (HA, 1M) is 1/100 th of that of
a strong acid (HX, 1M), at 25 °C. The K a of HA is
(A) 1 × 10 –4 (B) 1 × 10 –5 (C) 1 × 10 –6 (D) 1 × 10 –3
32. (A)
) (
) (
] [
] [
] ester ][ [
] ester ][ [
100
1
) (
) (
HX
HA
H
H
H k
H k
HX rate
HA rate
+
+
+
+
===
[H + ] (HA) = Ca = 10 –2 a = 10 –2 [Q C = 1]
5. JEE Advanced 2013 (02Jun13) Question & Solutions PaperI 5 www. prernaclasses.com
4
4 2
.
-
-
»
´
=
-
= 10
99 0
10 1
1 ) (
a
aC
K HA a
33. Benzene and naphthalene form an ideal solution at room temperature. For this process, the true
statement(s) is (are)
(A) DG is positive (B) DS system is positive
(C) DS surroundings = 0 (D) DH = 0
33. (BCD) For ideal solution DH = 0
DS mixing for system = +ve
DS surrounding = 0 as no heat is exchanged with surrounding.
34. The pair(s) of coordination complexes/ions exhibiting the same kind of isomerism is (are)
(A) [Cr(NH 3 ) 5 Cl]Cl 2 and [Cr(NH 3 ) 4 Cl 2 ]Cl (B) [Co(NH 3 ) 4 Cl 2 ] + and [Pt(NH 3 ) 2 (H 2 O)Cl] +
(C) [CoBr 2 Cl 2 ] 2– and [PtBr 2 Cl 2 ] 2– (D) [Pt(NH 3 ) 3 (NO 3 )]Cl and [Pt(NH 3 ) 3 Cl]Br
34. (BD) [Co(NH 3 ) 4 Cl 2 ] + and [Pt(NH 3 ) 2 (H 2 O)Cl] + exhibit geometrical isomerism
[Pt(NH 3 ) 3 (NO 3 )]Cl and [Pt(NH 3 ) 3 Cl]Br exhibit ionisation isomerism
35. The hyperconjugative stabilities of tertbutyl cation and 2butene, respectively, are due to
(A) s®p(empty) and s®p* electron delocalisations.
(B) s®s* and s®p electron delocalisations.
(C) s®p(filled) and s®p electron delocalisations.
(D) p(filled)®s* and s®p* electron delocalisations.
35. (A)
CH3
(s p(empty))
C +
CH3
CH2 H
CH2 C
CH3
CH2 H H +
(s p(filled))
CH2 C
CH3
CH3
6. JEE Advanced 2013 (02Jun13) Question & Solutions PaperI 6 www. prernaclasses.com
SECTION III (Integer value corret Type)
This section contains a group of5 questions.
The answer to each of the questions is a singledigit integer,ranging from 0 to 9.
36. A tetrapeptide has –COOH group on alanine. This produces glycine (Gly), valine (Val), phenyl
alanine (Phe) and alanine (Ala), on complete hydrolysis. For this tetrapeptide, the number of
possible sequences (primary structures) with –NH 2 group attached to a chiral center is
36. (4) Glycine is inactive, so it can not come as N–terminal amino acid. At the same time alanine
has to be present as Cterminal Therefore the possible combinations are.
PheGlyValAla
PheValGlyAla
ValPheGlyAla
ValGlyPheAla
37. The atomic masses of He and Ne are 4 and 20 a.m.u., respectively. The value of the de Broglie
wavelength of He gas at –73 °C is “M” times that of the de Broglie wavelength of Ne at 727 °C.
M is
37. (5) l = (h / mv)
M
RT
V
3
=
M
T
m
h
λ =
Ne
He
λ
λ
=
20
1000
20
4
200
4
´
´
h
h
= 5
38. The total number of lonepairs of electrons in melamine is
38. (6) Melamine
NH2
NH2 NH2
N: :N
N
7. JEE Advanced 2013 (02Jun13) Question & Solutions PaperI 7 www. prernaclasses.com
39. The total number of carboxylic acid groups in the product P is
O
O
O O
O
P
O H
O
O H
2 2
3
3
. 3
. 2
, . 1
¾¾¾ ®¾ D+
39. (2) O
O
O O
O
¾¾ ®¾
+O H 3 OH
O
O
OH
O
O
ation Decarboxyl
¾®¾D
O
O
+ 2CO 2
2 2
3
O H
O
¾®¾
HO
O
O
O
HO
O
40. EDTA 4– is ethylenediaminetetraacetate ion. The total number of N–Co–O bond angles in
[Co(EDTA)] 1– complex ion is
40. (8)