Narayana IIT Academy 04-06-22_INSR.

IIT_*CO-SC(MODEL-A)_JEE-ADV_WAT-48_Q’P
CHEMISTRY Max Marks: 62
SECTION – I
(SINGLE CORRECT ANSWER TYPE)
This section contains 5 multiple choice questions. Each question has 4 options (A), (B), (C) and (D) for its
answer, out of which ONLY ONE option can be correct.
Marking scheme: +3 for correct answer, 0 if not attempted and –1 in all other cases.
Me-I+Nucleophile(Nu)   Nu-Me+I The order rate of reaction of the following

2
SN
19.
nucleophiles,
(I) H 2O (II) CH 3CO2 (III) CH 3 SO2O  (IV) HO 
A) III > I > II > IV B) III > IV > II > I
C) IV > II > III > I D) IV > II > I > III
20. The decreasing order of reactivity of the following compounds towards nucleophilic

SEC: INSR_*CO-SC Date: 04-06-22 substitution ( SN 2 ) is

Time: 3 Hrs Max. Marks: 186
04-06-22_INSR.IIT_STAR CO-SC (MODEL-A)_JEE ADV_WAT-48_SYLLABUS
PHYSICS: PRESENT WEEK (80%): Current Electricity: Electric current
density drift velocity mobility, Ohm's law ohmic non-ohmic
conductors, resistance, resistivity and conductivity, colour coding of
resistors, series and parallel combination of resistors, Temperature
A) II > III > IV > I B) II > III > I > IV
dependence of resistance & resistivity, Internal resistance of a cell,
emf and terminal potential difference combination of resistors in C) III > II > IV > I D) IV > II > III > I
series, parallel, Heating effect of current (fuse, bulb etc..)
21. Identify correct reactivity order for SN 1 reaction
(EXCLUDING: circuit problems for finding equivalent resistance),
PREVIOUS WEEK (20%): Refraction at curved surface ,Lenses and
combination of lenses
CHEMISTRY: PRESENT WEEK (80%): Alkyl halides: Preparation and Reactions
of alkyl halides, Mechanism of Nucleophilic Substitution reactions
(SN1, SN2 ), Mechanism of Nucleophilic Substitution reactions (SNi
and NGP), Polyhalogen compounds NCERT(Exclude haloform A) i > ii > iii B) ii > iii > i C) i > iii > ii D) iii > i > ii
reaction) 22. Which of the following is/are correct regarding nucleophilic substitution reaction?
PREVIOUS WEEK (20%): Colour, Magnetic properties,
Catalytic properties, alloy and interstitial compounds
formation, oxides and oxoanions of metals, Preparation &
Properties of Potassium permanganate, Preparation & A)
Properties of Potassium dichromate
B)
MATHEMATICS: PRESENT WEEK (80%): Definite Integration: Definite Integration,
Fundamental theorem of integral calculus, Properties of Definite
integrals, Limit as a sum, C)
PREVIOUS WEEK (20%): Revision Of Ellipse, Hyperbola &
Parabola D)
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Narayana IIT Academy 04-06-22_INSR.IIT_*CO-SC(MODEL-A)_JEE-ADV_WAT-48_Q’P Narayana IIT Academy 04-06-22_INSR.IIT_*CO-SC(MODEL-A)_JEE-ADV_WAT-48_Q’P
23. Select incorrect statement about the products.

C)

A) P1 and P3 are identical B) P1 and P2 are positional isomers

C) P1 and P3 are enantiomers D) P2 and P3 are positional isomers
SECTION – II D)
(MULTIPLE CORRECT ANSWER TYPE)
This section contains 8 multiple choice questions. Each question has 4 options (A), (B), (C) and (D) for its answer, 26. Select correct order of dipole moment :
out of which ONE OR MORE than ONE option can be correct.
Marking scheme: +4 for all correct options & +1 partial marks, 0 if not attempted and -2 in all wrong A) CH 3  F  CH 3Cl  CH 3 Br  CH 3 I
cases
24. Which of the following statements are correct? B) CH 3Cl  CH 2Cl2  CHCl3  CCl4

A) Methyl chloride is less dense than water

B) DCM (dichloromethane) is denser than water

C) Although, alkyl halides are polar, they are insoluble in water C)

D) C – F bond is stronger than C – Cl bond

25. How many of them will give product with retention of configuration? (Consider
substrates are optically pure)
D)

27. Select reaction(s) which will give Et  I as major product

A) CH 3CH 2OH  KI 

H 2 SO4
 B) EtOEt HI
excess

A)
C) EtOH + KI 
H 3 PO4
 D) CH 2  CH 2 
(1) KI
(2) H 2O

28. Select substance(s) which used to convert Mn 2 to MnO 4 .

A) H 2O 2 / H  B) PbO 2 / H  C) NaBiO3 / H  D) Cr2O72 / H 

B)
29. In which of the following colouration does/do not arise due to d-d transition?

A) AgI B) MnO 4 
C) Fe2aq  D) CrO 24

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Narayana IIT Academy 04-06-22_INSR.IIT_*CO-SC(MODEL-A)_JEE-ADV_WAT-48_Q’P Narayana IIT Academy 04-06-22_INSR.IIT_*CO-SC(MODEL-A)_JEE-ADV_WAT-48_Q’P
30. Fusion of MnO2 with KOH in presence of O2 produces a salt ‘ W ’,. Alkaline solution 34. In the following monobromination reaction, the number of possible chiral products is
of ‘W’ upon electrolytic oxidation yields another salt ‘X’. The manganese containing
ions present in W and X, respectively are ‘Y’ and ‘Z’. Correct statement(s) is (are):

A) Y is diamagnetic in nature while Z is paramagnetic

B) Both Y and Z are coloured and have tetrahedral shape

C) In both Y and Z  -bonding occurs between p-orbitals of oxygen and d-orbitals of 35. How many of the following reaction(s) takes place through neighbouring group
manganese participation (N.G.P) mechanism?

D) In aqueous acidic solution Y undergoes disproportionation reaction to give Z and

MnO2
i) ii)
31. Which of the following statements are true?

A) CrO42 is tetrahedral in shape

B) Cr2 O7 2 has a Cr  O  Cr bond

iii) iv)
C) Na2 Cr2 O7 is a primary standard in volumetry

D) Na2 Cr2 O7 is less soluble then K 2 Cr2 O7

SECTION – III
(INTEGER ANSWER TYPE)
This section contains 5 questions. The answer is a single digit integer ranging from 0 to 9 (both inclusive). v) vi)
Marking scheme +3 for correct answer, 0 if not attempted and 0 in all other cases.
32. Observe the following reactions & consider major products. vii)

36. How many of the following will give precipitate with AgNO3( aq ) ?

What is P + Q ?
33. How many of the following are less reactive than CH 3CH 2 I in a SN 2 reaction?
i) MeI ii) CH 3CH 2CH 2 Br iii) CH 3CH 2CH 2CH 2Cl
iv) Me 2CHI v) Me 2CHCH 2 I vi) CH 2 =CH-CH 2 I
vii) PhCH 2 I
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 Narayana IIT Academy 04-06-22_INSR.IIT_*COSC(MODEL-A) _WAT-48_Key&Sol’s

Sec: INSR.IIT_*CO SC(MODEL-A) WAT-48 Date: 04.06.22

Time: 3HRS 2016_P1 Max. Marks: 186
KEY SHEET
PHYSICS

1 B 2 B 3 A 4 B 5 D
CHEMISTRY
6 ABC 7 AC 8 BC 9 AC 10 ABD
19. Rate of SN 2 =K[Me-I][Nu]
11 ACD 12 AC 13 ABD 14 4 15 4
20. SN 2 reaction depends upon -I, -M effect on substrate and steric effect.
16 8 17 8 18 4
21. Rate of SN 1 depends on stability of carbocation.
22. CONCEPTUAL
23.
CHEMISTRY

19 D 20 C 21 A 22 A 23 A

24 ABCD 25 AD 26 BC 27 BC 28 BC

29 ABD 30 BCD 31 ABC 32 3 33 4

34 5 35 7 36 5
24. CONCEPTUAL
25. CONCEPTUAL
26. CONCEPTUAL
27. H 2 SO4 oxidize KI into I 2 .
MATHEMATICS
 i  PbO2 / H 
37 B 38 A 39 D 40 A 41 B 28. Mn 2    MnO 4
 ii  BiO3 / H 
(iii) Na 2S2 O8 / H 
42 ABCD 43 ABCD 44 BCD 45 AC 46 BC

47 ABC 48 ABCD 49 AD 50 1 51 2 29. Colouration of MnO 4 , CrO 24  , Cr2O72  and CrO2Cl2 is due to charge transfer

52 0 53 4 54 0 spectrum. The colour of AgI is due to polarization

30. CONCEPTUAL
31. CONCEPTUAL
32. P is mixture of enantiomers and Q is meso compound.
33. CONCEPTUAL
34.

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 NARAYANA EDUCATIONAL SOCIETY
Narayana IIT Academy 04-06-22_INSR.IIT_*COSC(MODEL-A) _WAT-48_Key&Sol’s

SUPER CHAINA CAMPUS

INC.SR’S(MODEL-A)_WAT-48_04.06.22_FINAL KEY
SNO SUB Q.NO GIVEN.KEY FINALKEY REMARKS

1 CHE 19 D DELETE Support for the answer

2 CHE C DELETE Source not there

20

3 CHE A DELETE Support for the answer

21

4 CHE 23 A DELETE -

CHE AD ACD Key change

5 25

6 CHE 27 BC C or BC Key change

7 CHE 31 ABC AB Key change

CHE 3 DELETE -
8 32
35. CONCEPTUAL
9 CHE 35 7 DELETE Source not there
36. AgF is soluble in water

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Narayana IIT Academy 08-02-21_Jr.IIT_*CO-SC _JEE-ADV_WAT-35_Q’P Narayana IIT Academy 08-02-21_Jr.IIT_*CO-SC _JEE-ADV_WAT-35_Q’P
CHEMISTRY Max Marks: 60 26. Chloromethane on treatment with excess of ammonia yields mainly
SECTION – I
(SINGLE CORRECT ANSWER TYPE)
This section contains 10 multiple choice questions. Each question has 4 options (A), (B), (C) and (D) for its
answer, out of which ONLY ONE option can be correct.
A) N, N – Dimethylmethanamine
Marking scheme: +3 for correct answer, 0 if not attempted and -1 in all other cases.
21. The order of reactivity of following alcohols with halogen acids is B) N – methylmethanamine  CH 3  NH  CH 3 

CH3 C) Methanamine  CH 3 NH 2 
3 H2 CH OH
CHC
I) CH 3CH 2  CH 2  OH II) 3 H2 COH
III) CHC
CH3
D) Mixture containing these in equal proportion
CH3
27. Which of the following compounds will give racemic mixture on nucleophilic
A) I>II>III B) III>II>I C) II>I>III D) I>III>II
substitution by OH– ion?
22. Which of the following alcohols will give best yield of the corresponding alkyl
chloride on reaction with concentrated HCl at room temperature? Br
CH3 CH Br CH3 CH CH2Br
I) II) CH3 CCH3 III)
3 H2 CH OH
CHC
C2H5 C2H5
A) CH 3CH 2  CH 2  OH B) C2H5
CH3
CH3
A) I B) I, II, III C) II, III D) I, III
3 H2 CH CHO
CHC 2 H
3 H2 COH
C) D) CHC 28. KI in acetone, undergoes SN2 reaction with each P, Q, R and S. The rates of the
CH3 reaction vary as
CH3
23. Which reagent will you use for the following reaction?
CH 3CH 2CH 2CH 3  CH 3CH 2CH 2CH 2Cl  CH 3CH 2CHClCH 3

A) Cl2 / UV light B) NaCl + H2SO4

C) Cl2 gas in dark D) Cl2 gas in the presence of iron in dark A) P > Q > R > S B) S > P > R > Q
24. Arrange the following compounds in increasing order of their boiling points C) P > R > Q > S D) R > P > S > Q
CH3 29. Identify the set of reagents / reaction conditions X and Y in the following set of
CH3
transformations:
I) CH CH2Br II) CH 3CH 2CH 2CH 2 Br III) 3 CCH3
HC
CH3
Br

A)II<I<III B) I<II<III C) III<I<II D) III<II<I

A) X – dilute aqueous NaOH, 20oC, Y = HBr / acetic acid, 20oC
25. Which of the following alkyl halides will undergo SN1 reaction most readily?
B) X = concentrated alcoholic NaOH, 80oC, Y = HBr/ acetic acid, 20oC
A)  CH 3 3 C  F B)  CH 3 3 C  Cl
C) X = dilute aqueous NaOH, 20oC, Y = Br2 / CHCl3, 0oC
C)  CH 3  3 C  Br D)  CH 3 3 C  I
D) X = concentrated aqueous NaOH, 80oC, Y = Br2 / CHCl3, 0oC

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Narayana IIT Academy 08-02-21_Jr.IIT_*CO-SC _JEE-ADV_WAT-35_Q’P Narayana IIT Academy 08-02-21_Jr.IIT_*CO-SC _JEE-ADV_WAT-35_Q’P
30. The reaction condition leading to the best yield of C2H5Cl is Paragraph for Question Nos. 33 & 34:
A) C2 H 6  excess   Cl2 
UV light Given is the energy profile diagram of nitration of benzene using mixed acid.
(HNO3 + H2SO4).
B) C2 H 6  Cl2  excess  dark
room temp


C) C2 H 6  Cl2  excess  

UV light

D) C2 H 6  Cl2 
UV light

SECTION - II
(PARAGRAPH TYPE) 33. Identify (x) in above reaction
This section contains 3 Paragraph of questions. Each paragraph has 2 multiple choice questions based on
a paragraph. Each question has 4 choices A), B), C) and D) for its answer, out of which ONLY ONE IS correct.
Marking scheme: +3 for correct answer, 0 if not attempted and -1 in all other cases.
Paragraph for Question Nos. 31 & 32: A) B) C) D) None of these
Water, alcohol can serve as not only solvents but also as nucleophiles. When a solvent
34. Identify T.S1 in the above reaction
can act like a nucleophile the reaction is called solvolysis. It is a case of nucleophilic
reaction which can take place by either SN1 or SN2 mechanisms. If solvent is polar and
halides is tertiary or secondary, SN1 mechanism is followed but if it is a primary halide
SN2 mechanism is favoured. A) B) C) D) None of these

31. Which of the following shows the correct decreasing order of solvolysis with aqueous Paragraph for Question Nos. 35 &36:
Nucleophilic aliphatic substitution reaction is mainly of two types SN1 and SN2. The
ethanol?
SN1 mechanism is a two step process. Reaction velocity of SN1 reaction depends only
on the concentration of the substrate. Since product formation takes place by the
1) 2)
formation of carbocation, optically active substrate gives (+) and (-) forms of the
product. In most of the cases the product usually consists of 5 – 20% inverted product
3) 4) and 80 – 95% racemised species. The more stable the carbocation, the greater is the
A) 3 > 2 > 1 > 4 B) 3 > 2 > 4 > 1 proportion of racemisation. In solvolysis reaction, the more nucleophilic the solvent,

C) 2 > 3 > 4 > 1 D) None of these the greater is the proportion of inversion

35. Which one of the following compound will give SN1 reaction predominantly?
32. CH3
Here (P) is H3C
A) H5C6 Br B)
Br
CH3
A) B) C) D) None of these C) H 3C  Br
D) Predominance of SN1 is equal in A, B and C options

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Narayana IIT Academy 08-02-21_Jr.IIT_*CO-SC _JEE-ADV_WAT-35_Q’P Narayana IIT Academy 08-02-21_Jr.IIT_*CO-SC _JEE-ADV_WAT-35_Q’P
36. For the given reaction 38. Match the chemical conversion in Column – I with the appropriate reagents in
Column – II and select the correct answer using the code given below the lists
Column – I Column -II

Which substrate will give maximum racemisation? i) Hg  OAc 2 ;

P) 1)
ii) NaBH 4
A) B)
Q) 2) NaOEt

R) 3) Et  Br
C) D)

i) BH 3 ;
S) 4)
ii) H 2O 2 / NaOH
SECTION - III
(Matching List Type)
This section contains four questions, each having two matching lists (List-1 & List-II). The options for the correct
match are provided as (A), (B),(C) and (D) out of which ONLY ONE is correct. A) P – 2, Q – 3, R – 1, S – 4 B) P – 3, Q – 2, R – 1, S – 4
Marking scheme: +3 for correct answer, 0 if not attempted and -1 in all other cases.
C) P – 2, Q – 3, R – 4, S – 1 D) P – 3, Q – 2, R – 4, S – 1
37. List – I contains reactions and List – II contains major products
LIST-I LIST-II 39. Match the following
Column – I Column -II
P) 1) (Compound) ( Type of reaction)

Q) 2) A) P) SN1 reaction can take place

R) 3)
B) Q) SN2 reaction can take place
S) 4)

5) C) R) SN1 is not possible

Match each reaction in List – I with one or more products in List – II and choose
the correct option
A) P  1,5; Q  2; R  3; S  4 B) P  1,4 ; Q  2; R  4; S  3 D) S) SN2 is not possible
C) P  1,4; Q  1,2; R  3,4; S  4 D) P  4,5; Q  4; R  4; S  3,4
A) A-RS; B-PQ; C-RS ; D-RS B) A-RS; B-R; C-RS; D-RS
C) A-RS; B-PQ; C-Q; D-RS D) None of these

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Narayana IIT Academy 08-02-21_Jr.IIT_*CO-SC _JEE-ADV_WAT-35_Q’P
40. Match the column I and II
Column I Column II
(Group) (Effect on phenyl ring)
A) –CH=CH-CO H P) o/p – directors Sec: JR.IIT_*CO SC WAT-35 Date: 08-02-21
2 Time: 3HRS 2014_P2 Max.Marks: 180
KEY SHEET
B) Q) meta – directors
PHYSICS

C) R) Activating group 1 B 2 A 3 D 4 A 5 B

6 B 7 A 8 C 9 D 10 A
D) S) De-activating group 11 A 12 D 13 A 14 B 15 B

16 D 17 B 18 A 19 C 20 A
A) A-QS; B-PR; C-PR ; D-PS B) A-PS; B-PR; C-PR; D-PS
C) A-PS; B-PR; C-PR; D-QS D) None of these

CHEMISTRY
21 B 22 D 23 A 24 C 25 D

26 C 27 A 28 B 29 B 30 A

31 B 32 C 33 A 34 B 35 A

36 C 37 B 38 A 39 A 40 B

MATHEMATICS
41 A 42 B 43 C 44 A 45 C

46 B 47 B 48 A 49 D 50 B

51 C 52 B 53 C 54 A 55 A

56 B 57 A 58 A 59 C 60 C

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Narayana IIT Academy 08-02-21_ JR.IIT_*COSC_JEE-ADV_WAT-35_Key&Sol’s Narayana IIT Academy 08-02-21_ JR.IIT_*COSC_JEE-ADV_WAT-35_Key&Sol’s
CHEMISTRY
24. Boiling point of (a) 364 K. boiling point of (b) 375K, boiling point of c 346 K
28.

38.

29.

30. During chlorination of alkane, if excess of alkane is treated with Cl2(g) in presence of light or
heat, chance of mono – chlorination predominate
C2 H 6  excess   Cl2 
UV  light
 CH 3CH 2Cl  HCl
37.

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Narayana IIT Academy 04-01-20_Jr.IIT_SC-60_JEE-Adv _WTA-35_Q'P Narayana IIT Academy 04-01-20_Jr.IIT_SC-60_JEE-Adv _WTA-35_Q'P
CHEMISTRY Max.Marks:70 24. Which of the following is not resonance form of intermediate in nucleophilic addition
SECTION I of KOH to p-fluoronitrobenzene?
SINGLE CORRECT ANSWER TYPE
This section contains 10 multiple choice questions. Each question has four choices (A), (B), (C) and (D) out of F OH F OH F OH F OH
which ONLY ONE is correct.
Marking scheme +3 for correct answer , 0 if not attempted and -1 in all other cases.
21. The major product formed in the following reaction is
O + + + +
Et 2AlCl N N N N
O
A) O O B) O O C) O O D) O O
o
Benzene, 5 C
Cl 3C 25.
OH O OH O Cl
Cl
Ph Ph HNO 3 CH 3ONa
A) Cl 3C B) Cl 3C B. 'B' is
H2SO 4 
Ph O Ph O

Cl OCH 3 OCH 3
OH OH
C) Cl 3C D) Cl 3C OCH 3 Cl
Cl
22. NO 2
OTs
Me
H CH3COOH NO 2 NO 2 NO 2
A) B) C) D)
A+B
Me H Product(s) 26. Which of the following is major product of given reaction
Ph Cl
NaOH, H 2O
A) A & B are enantiomers B) A & B are diastereomers Et 2N Product
CH3 (Major)
C) A & B are identical D) A & B are Meso
NEt 2 OH
23. HO Et2N
CH3 CH3
O A) B)
O O Anhyd
+ (A) OH
Et 2N
AlCl 3 CH3
H2N
OH CH3
C) D)
Product (A) is:
O 27. The correct order of reactivity of p-halonitrobenzenes in the following reaction is
O
OH NO 2 NO 2
OH NaOMe
Ph
O
O X
A) B) MeO

O (X=F,Cl,Br,l)
O
A) p-chloronitrobenzene > p-iodonitrobenzene > p-fluoronitrobenzene > p-
O bromonitrobenzene
B) p-fluoronitrobenzene > p-chloronitrobenzene > p-bromonitrobenzene > p-
C) O D) O
iodonitrobenzene
Narayana IIT Academy 04-01-20_Jr.IIT_SC-60_JEE-Adv _WTA-35_Q'P Narayana IIT Academy 04-01-20_Jr.IIT_SC-60_JEE-Adv _WTA-35_Q'P
C) p-iodonitrobenzene > p-bromonitrobenzene > p-chloronitrobenzene > p-
MeO MeO
fluoronitrobenzene Me Me

D) p-bromonitrobenzene > p-fluoronitrobenzene p-iodonitrobenzene > p- OAc

OAc
chloronitrobenzene Me Me

28. The product [C] of the following sequence of reaction is + +

C) Enantiomer D) Enantiomer
(i) AlCl 3 Cl 2 (lim) aq NaOH
+ CH 2 CH 2 A B C SECTION II
(ii) H 2O hv
MULTIPLE CORRECT ANSWER(S) TYPE
This section contains 5 multiple choice questions. Each question has four choices (A), (B), (C) and (D) out of
OH
CH3 which ONE or MORE are correct.
Marking scheme +4 for correct answer , 0 if not attempted and 0 in all other cases.
i-PrMgBr + H 2O [K]
A) HO B)
OH OH i-BuMgBr + H 2O [L]
31.
CH3 CH3
[K] and [L] respectively are
Cl
A) K is isopropane B) K is propane
C) D)
C) L is isobutane D) L is butane
29. (i) chlorobenzene is mono-nitrated to M. OCH 3

(ii) nitrobenzene is mono-chlorinated to N. Cl

KNH 2
(iii) anisole is mono-nitrated to P. Products
32.
(iv) 2-nitrochlorobenzene is mono-nitrated to Q.
Products are ?
Out of M, N, P and Q the compound that undergoes reaction with aq. NaOH fastest is OCH 3
OCH 3 OCH 3
A) M B) N C) P D) Q
NH 2 NH 2
30. Solvolysis of the optically active compound [X] gives, mainly
MeO
Me A) NH 2 B) C) NH 2 D)
AcOK
AcOH
33.
OTs
Cl 2 HNO 3
Me [X] [A]
FeCl 2 H2SO 4
[X]
MeO MeO
Me Me

HNO 3 Cl 2
OAc OAc [Y] [B]
H2SO 4 FeCl 3
Me Me

A) (optically pure) B) (optically pure) A and B are

A) identical
B) position isomers
C) geometrical isomer
D) None
Narayana IIT Academy 04-01-20_Jr.IIT_SC-60_JEE-Adv _WTA-35_Q'P Narayana IIT Academy 04-01-20_Jr.IIT_SC-60_JEE-Adv _WTA-35_Q'P
34. Which of the following is/are true statement(s) 37.
F OCH 3 CH3

H OH HBr
NaOCH 3 Product (s)
intermediate H Br CCl 4

CH3
NO 2 NO 2
Find the number chiral dibromide products formed in above reaction.
A) the intermediate is aromatic. 38.
B) the intermediate is resonance stabilized anion. CH3 CH3
C) electron withdrawing group on benzene ring stabilize the intermediate. H3C CH3
1) B , THF
D) this is elimination-addition reaction. H3C H H3C
35. Consider the following SN Ar reaction
2) H2O 2, NaOH
O 2N Cl
+
Find the number of structurally different alcohol formed as product after completion
KCN [Product]
F (excess) of reaction.
The correct statement(s) is/are 39.
Cl
A) Cl will be substituted first as it is a better leaving group.
14 HCl
B) F will be substituted first because nitro group from para position facilitate this. NaOH
Phenoxide Product (s )
623 K
C) After substitution of one halogen, substitution of the second halogen becomes 300 atm
ion(s)

more easy. Find the number of phenols formed in above reaction

D) First chlorine and then fluorine would be substituted subsequently. 40. The number of possible monohalogenated products obtained in the following reaction
SECTION III
is
INTEGER ANSWER TYPE
This section contains 5 questions. The answer to each question is single digit integer, ranging from 0 to 9 CH3
(both inclusive). Cl 2
Marking scheme +4 for correct answer , 0 if not attempted and 0 in all other cases.
hv
36.
COOH

NaOH Cl 2 HNO 3 Cl 2 CH 3ONa

A B C D E
CaO,  FeCl 3 H2SO 4 FeCl 3

Find the locant (i.e. position number) of chlorine atom as per IUPAC in final product
E.
 Narayana IIT Academy 28-12-19_Jr.IIT_SC-60_JEE-Adv_WTA-34_Q'P
CHEMISTRY Max. Marks: 61
SECTION – I
(MULTIPLE CORRECT ANSWER TYPE)
This section contains 7 multiple choice questions. Each question has 4 options (A), (B), (C) and (D) for its answer,
out of which ONE OR MORE than ONE option can be correct.
Sec: SUPER CHAINA WTA-35 Date: 04-01-20 Marking scheme: +4 for all correct options & +1 partial marks, 0 if not attempted and -2 in all wrong
Time:3hrs 2012_P1 Max.Marks:210 cases
KEY SHEET 19. Correct statement is/are
A) Transition state for both E 2 (bimolecular elimination) and SN 2 is same
PHYSICS
1 D 2 C 3 C 4 A 5 B B) Rate of CH 3I substitution with N 3 at 00 C is more in DMF than in CH 3OH
CH3
6 B 7 A 8 A 9 A 10 B CH3
KOH (aq)

H3C low te mp
11 AC 12 ACD 13 ACD 14 ABD 15 ABCD C) Br has substitution, with first order kinetics (SN1 )
CH3 CD 3
16 0 17 6 18 3 19 8 20 4
H3C C Br D3C C Br
CH3 CD 3
D) has more rate of SN1 than due to primary kinetic isotopic
effect
CHEMISTRY
20. For each of the following compounds, indicate which ring you would expect to be
21 B 22 C 23 A 24 A 25 C
attacked in nitration
26 A 27 B 28 D 29 D 30 C O 2N
O
31 BC 32 AB 33 B 34 BC 35 BC , CH2 , C O
O 2N

36 2 37 0 38 2 39 3 40 8
NO 2

(P) (Q) (R) (S) (T) (U)

A) P, S, T B) Q, R, T C) Q, S, U D) P, S, U
MATHS 21. The compound which can show faster rate of SN 2 mechanism than CH 3CH 2CH 2Cl in
41 B 42 C 43 B 44 B 45 C
identical conditions is
46 B 47 A 48 A 49 A 50 B CH 2Br

51 CD 52 BC 53 ABC 54 ABCD 55 AC

56 0 57 2 58 4 59 9 60 1 O
Cl CH3
O Cl NO 2
A) Ph B) C) CH 3Cl D)

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Narayana IIT Academy 28-12-19_Jr.IIT_SC-60_JEE-Adv_WTA-34_Q'P Narayana IIT Academy 28-12-19_Jr.IIT_SC-60_JEE-Adv_WTA-34_Q'P
22. Which of the following is correct regarding nucleophilic substitution reaction? 25.

 Br   (SN1) H2O
Br Br OTs OH
Br aqueous
A) acetone

(I)

Br  Br   (SN1)
Br H2O
Br F 3C OH
B) F 3C OTs
aqueous
acetone

Br  Br   (SN 2) (II)

Br
C) Br

 Br   (SN 2)
Cl
NaI
I
Br
Br acetone
D) Br
(III)
OH

CH3 NaI
+ HBr Cl F 3C I
F 3C
acetone
23. possible product is (with considerable % yield)
(IV)
Br
Br
A) I is faster than II B) II is faster than I
Br

Br
C) IV is slower than III D) III is faster than IV
A) B) C) D) SECTION-II
24. Racemization takes place in case of (INTEGER ANSWER TYPE)
This section contains 5 questions. The answer is a single digit integer ranging from 0 to 9 (both inclusive).
C2H5 Marking scheme +3 for correct answer , 0 if not attempted and 0 in all other cases.
CH 3 aq. KOH
D3C C CH 2Br 26. How many of the following can show both SN1 and SN 2 reaction paths
aq. KOH
CH 3CH-CH 2Br H
A) B) H3C Br
CH3 H3C
NaBr H3C Br
Br
H3C C I
aq. KOH acetone
C)
CH 2Br
D) C2H5 1. C6 H 5  CH 2 Br 2. H3C
3. H3C
4.
CH 2Br
NO 2
Br

O
||
5. 6. NO 2
7. CH 3 C CH 2 Br

Sec: Jr-IIT_SC-60 Page 10 Sec: Jr-IIT_SC-60 Page 11

Narayana IIT Academy 28-12-19_Jr.IIT_SC-60_JEE-Adv_WTA-34_Q'P Narayana IIT Academy 28-12-19_Jr.IIT_SC-60_JEE-Adv_WTA-34_Q'P
27. How many of the following will undergo rearrangement during SN1 reactions. SECTION – III
(SINGLE CORRECT ANSWER TYPE)
H3C Br This section contains 6 multiple choice questions. Each question has 4 options (A), (B), (C) and (D) for its answer,
H3C CH3
H3C CH3 out of which ONLY ONE option can be correct.
CH3 CH3
H3C H3C Marking scheme: +3 for correct answer, 0 if not attempted and -1 in all other cases.
1) H3C Br
2) I 3) I 4) Answer Q,31, Q,32 and Q,33 by appropriately matching the information given in the three
columns of the following table.
CH3
CH3 CH3
Br
Column –
Column – I Column – III
Br Br II
5) 6) 7)
I C6H5 Cl (i) SN1 (P Walden
28. How many of the following can release NH 3 from NH 4Cl SOCl 2
H3C C OH C6H5 CH CH3
NH2 inversion
) takes
H
NH place
H2N C NH2 II C6H5 Cl (ii) SN 2 (Q Proceeds with
N SOCl 2
N H3C C OH C6H5 CH CH3
H retention
)
Pyridine
H
29. How many moles of AgNO3 will react with the given compound?
III Cl (iii (R Recemization
SOCl2 SN'i
CH3 CH CH CH2OH CH3 CH CH CH2
) takes
) place
IV CH 3 OH (iv) SN i (S Carbocation
CH 3 Cl
C + HCl C
C6H5 intermediate
)
H C6H5 H
observed
31. Correct match among the following
A) I  iv  Q B) II  ii  S C) III  i  R D) IV  iii  P
32. Regarding III which is not observed
Cl
30. How many alkyl chloroides will gives faster rate of solvolysis than in
A) iii B) S C) R D) all of these
aqueous ethanol
33. Incorrect match out of the given
A) II-iv-Q B) III-iii-R C) IV-i-R D) I-iv-Q
Cl Cl Cl
H3C

Cl Cl Cl

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Narayana IIT Academy 28-12-19_Jr.IIT_SC-60_JEE-Adv_WTA-34_Q'P
Answer Q,34, Q,35 and Q,36 by appropriately matching the information given in the
three columns of the following table.
Column – I Column – II Column – III
Sec: SUPER CHAINA WTA-34 Date: 28-12-19
Product aq. solution give white Time:3HRS 2017_P-I Max.Marks:183
I B3 N 3 H 6  H 2 O  i H 3BO 3 (P)
precipitate with AlCl3 KEY SHEET
II B2 H 6  Cl 2  ii B2 H 6 (Q) Product is polymeric solid
PHYSICS
III Na 2 B4O7 
H 2O
iii BCl3 (R) Product has 3C  2e  bond 1 ACD 2 AC 3 AB 4 BD 5 D
IV NaBH 4  I 2 
 iv NH 3 (S) Product has back bonding 6 BD 7 BCD 8 2 9 3 10 0

11 2 12 3 13 C 14 B 15 A
34. Correct match is
16 A 17 C 18 D
A) I-i, iv B) II-iii C) IV-ii D)All of these
35. Regarding IV incorrect correct statement is
A) one of the products can used to reduce alkene to alkanes
CHEMISTRY
B) one of the products is highly inflammable gas
19 BC 20 D 21 ABCD 22 AD 23 AB
C) one of the products has anion, easily oxidized by Con. H 2 SO4
24 B 25 A 26 2 27 5 28 1
D) Product containing boron is toxic, nonflammable gas under normal conditions
36. Correct match is 29 3 30 0 31 A 32 B 33 A

A) I-i-Q B) II-iii-R C) III-i-R D) IV-ii-P 34 D 35 D 36 A

MATHS
37 AB 38 ABCD 39 AB 40 AC 41 ABD

42 CD 43 BC 44 6 45 7 46 1

47 4 48 1 49 D 50 C 51 A

52 C 53 D 54 A

Sec: Jr-IIT_SC-60 Page 14

Narayana IIT Academy 28-12-19_SUPER CHAINA_JEE-ADV _JR'S_WTA-34_Key&Sol’s
CD3
|
19. CH 3  C  Br has less rate due to secondary kinetic isotopic effect
|
CD3

20. Conceptual
21. Transition state is stable by –I groups or  bonded groups
22. NCERT
23. 30 -carbocation doesn’t shifted to 20 -cation

24. Chiral carbon possible only in ‘B’

25. Conceptual
26. 1 and 3 shows both SN 1 and SN 2 paths

27. ,
28. Conceptual
29. Stable carbocation is formed with loss of Br 
36. B3 N 3 H 6  9 H 2O  3 NH 3  3H 3 BO3  3H 2O

B2 H 6  6Cl2  2 BCl3  6 HCl

Na2 B4O7  7 H 2O  2 Na  B  OH  4   2 H 3 BO3

2 NaBH 4  I 2  B2 H 6  2 NaI  H 2

Sec: SUPER CHAINA Page 4