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111
RAO IIT ACADEMY / Medical - UG / NEET - II / 2016 / Solutions / Code : AA / PP / WW
NEET - II : 2016CODE -AA/PP/WW
PHYSICSDate : 24-07-2016
Time : 3 Hrs.Marks : 720
Medical - UG
1.
5 32
3 3 3
hG L T L LL TC
Topic: _____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
2. 2pdxa bt
dt
2qdxf t
dt
2 2a bt f t
2 2f atb
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
3. 0 1tan 303
t
r
aa
2 2 15t ra a 4 / 3 15ra
22 15
3r
ra a
3 15ra
a300
23154r
var
315 2.5 5.7 /4
v m s
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
22
RAO IIT ACADEMY / Medical - UG / NEET - II / 2016 / Solutions / Code : AA / PP / WW
4.600
600
V
V cos(60 )0
I P
2 cos 60m V
mvTopic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
5. 212 0.1 22
g u
4 2
i fp p
0.01 400 0.01 2 2V
2 kg
5 m
10 cmu
v 4 2 4 2 1.4 1000.01
V
4 2.8 100
1.2 100 = 120
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
6. mm 0.5 0.3
A B
Velocity exchange due to same mass.Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
7. ˆ ˆ ˆ4 3 2 5D Displacement i k i j
ˆˆ ˆ2 3i j k
Work F D
ˆˆ ˆ ˆ ˆ4 3 2 3i j i j k
8 3 5 Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
333
RAO IIT ACADEMY / Medical - UG / NEET - II / 2016 / Solutions / Code : AA / PP / WW
8. (3)
2 22
1 12 2A A BI I
2 2A A B B
A B
I II I
2
A A
B B
L IL I
B A B AI I L L
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
9.
2 22
22 2
2152
12 2
SS SS
CC C C
MRIEMRE I
2
4 1 15 2 5
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
10. m1 m2
CM
2
1 2
m lm m
2 2
2 11 2
1 2 1 2
m l m lI m mm m m m
21 2
1 221 2
m m l m mm m
21 2
1 2
m m lm m
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
11. 3
GMrg r RR
2
GM r Rr
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
44
RAO IIT ACADEMY / Medical - UG / NEET - II / 2016 / Solutions / Code : AA / PP / WW
12. 2GMmTotal energyR h
2
22GM R m
R R h
2
0
2g mR
R h
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
13. 4
04
3 10 3 1 0.1252 20 8 10 24 8
P E SArea
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
14. 2 cosshfrg
cosconstant
1 2 3
1 2 3
cos cos cos
1 2 3
1 2 3cos cos cos
1 2 3
Rise means 090
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
15. 050For C
100releasedR mC T
gain 0mC T
100 0C C
050R gain T C
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
555
RAO IIT ACADEMY / Medical - UG / NEET - II / 2016 / Solutions / Code : AA / PP / WW
16. 3 2 3 2 .... 110 2
T T T TC T
2 ' ' 2 .... 210 2
T T T TC T
2 2 ' '/ 21 3 2 3 / 2
T T TT T T
3 2 ' 'T T T
6 4 'T T
6 3'4 2T TT
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
17. 3 3PV C K
0 1RC C
K
3 32 1 3 2 2
R R RR
= RTopic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
18. Heat delivered 1
Energy consumed W
1 1
2 21 2
1 1
1 12731 1273
tWt
1
1 2
273tt t
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
19. PV nRT
A
A
kN TRTPM mN
kTPm
mPkT
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
66
RAO IIT ACADEMY / Medical - UG / NEET - II / 2016 / Solutions / Code : AA / PP / WW
20. 2 mTk
T m
35 1
mm
9 9 25m m 925 1
mm
9 16m
916
m
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
21.0
3 32 4 C
V VL L
0 2L L
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
22. 1 sin 2y A nt
2 sin 2 1y A n t
3 sin 2 1y A n t
2sin 2 cos 2 sin 2y nt t A nt
1 2cos 2 sin 2A t nt
cos 2 1t
2 t n t n
1 30, ,1, ....2 2
t
so time interval = 12
s
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
23. sinPE
3 04 0.02 2 10 sin 30q
4 0.22 10
q
200q mcTopic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
777
RAO IIT ACADEMY / Medical - UG / NEET - II / 2016 / Solutions / Code : AA / PP / WW
24. 01 2 3 1
23
A K K K Cd
1 2 3, , are parallelk k k
04 2
2
A K Cd
1 2
1 1 1C C C
0 0 1 2 3 0 4
32 2
d d dAK A K K K AK
1 2 3 4
1 3 12K z K K K K
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
25. 1 2 3 2 2 9V Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
26.2 2100500
b
VPR R
20bR
3020
IR
2500 20I
2230500 2020 R
22302520 R
230 520 R
46 20 R
26R
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
88
RAO IIT ACADEMY / Medical - UG / NEET - II / 2016 / Solutions / Code : AA / PP / WW
27. one turn2
R
01 2
IB BR
2Rr
n n
20 02 2 2 R
n
nI n IB n Br
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
28. cos60oW MB MB
2MBW
sin 60oMB
32 32
W W
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
29. (1)
2mV qv Br
V e Br m
2 2V e Bf
r m
91.76 3.57 102 3.14
f
90.98 10f
1d GHz
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
999
RAO IIT ACADEMY / Medical - UG / NEET - II / 2016 / Solutions / Code : AA / PP / WW30. For a series circuit
1 LQR C
31
1 1.5 1020 35
Q
32
1 2.5 1025 45
Q
33
1 3.5 1015 30
Q
34
1 1.5 1025 45
Q
3rd circuit has maximum Q value & hence best suited for tuinng.Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
31. 21
dBrdt
2 0
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
32.
80 V
60
Veff
80V
100V
40
80cos 0.83600 6400
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
33.220100
t
i e
2.2t
i e
100 C
220 Vmax 2.2i A
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
1010
RAO IIT ACADEMY / Medical - UG / NEET - II / 2016 / Solutions / Code : AA / PP / WW
34. 1 3 1 112f R R
1 1f R
1 4 1 11' 3f R R
1 2 23 3R R
1 1 1 1 2 2 4' 3 3efff f f f R R R
34effff
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
35. 115 7.5
1.5t t cm
223 4.5
1.5t t cm
12t cm
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
36.1 1
2 2
I An nI A
1 2 max
1 2 min
11
A A A nA A A n
2
max2
min
1
1
nII n
max min
max min
21
I I nI I n
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
111111
RAO IIT ACADEMY / Medical - UG / NEET - II / 2016 / Solutions / Code : AA / PP / WW
37.1 1 144
v m Pd
0.25 diopterP
It is a concave lines.
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
38.5 2
2
5 10 10 0.60.02 10
D yd
415 10
0.15cm
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
39.h hv
mv m
22
2 2
hvm
22
2
12 2
hm vm
2
0 22hc h
m
2
02m C
h
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
40. In first case
max5 . 2pE eV K E eV
3eV
In second case
max. 6 3 3K E eV
Stopping voltage 3V
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
1212
RAO IIT ACADEMY / Medical - UG / NEET - II / 2016 / Solutions / Code : AA / PP / WW
41. 2 2
1 1 13
RdeR
1 536
Rd
1 1 1 7' 9 16 9 16
Rd Rd
9 155'736
20'7
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
42. 12
30mint
230n
10 00 6 tN N e
20 09 15 tN N e
2 14 t te
2 2n t
60mint
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
43. 100cII
1000BR
100 cII
0 4V V
o L
i B
V RV R
4 1000 0.02 20100 2000iV mv
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
131313
RAO IIT ACADEMY / Medical - UG / NEET - II / 2016 / Solutions / Code : AA / PP / WW
44.
II
R1 D1 D210V
3 2
Diode D1 is reversed biased. Then no current will flow through that link.
10 2.54
I A
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
45.O AO BO C
P O
OR 1
11 1 1 1 0
A B P C QO O O O
Topic:_____ ; Sub Topic: _____ ; L:_ ; Medical-UG ; NEET Exam - 2016
111
RAO IIT ACADEMY / Medical - UG / NEET - II / 2016 / Solutions / Code : PP / Chemistry
NEET - II : 2016CODE - PP
CHEMISTRYDate : 24-07-2016
Time : 3 Hrs.Marks : 720
Medical - UG
Q.46 A long chain of glucose units attached together by 1, 4 linkages. It is the ability of these chains to hydrogenbond together in to fibres that gives cellulose its unique properties of mechanical strength and chemicalstability.
Topic:Biomolecules; Sub Topic:Carbohydrates; L:2 ; Medical-UG ; AIPMT / NEET Exam - 2016
Q.4731000 cmMolar conductivity
0.5 molek
3
3 1 1000 cm5.76 10 Scm0.5 mole
2 11.152 10 Scm mol
2 111.52 Scm molTopic:Electrochemistry; Sub Topic:Conductance and conductivity; L:1 ; Medical-UG ; AIPMT / NEET Exam
- 2016
Q.48 Unimolecular surface reactions can be described by1 2
1( ) ( ) productsK Kg adsorbedK
A A
Rate of product formation is 2 AK (where A is surface coverage of A).
2 Ar K {i.e., rate of reaction is directly proportional to surface coverage}Topic:Surface chemistry; Sub Topic:Adsorption; L:2 ; Medical-UG ; AIPMT / NEET Exam - 2016
Q.49 Millimoles of an electrolyte that must be added to one litre of colloidal solution to bring complete coagulationis called coagulation value.
1Coagulation powerCoagulation value
Topic: Surface chemistry; Sub Topic: Colloids; L:1 ; Medical-UG ; AIPMT / NEET Exam - 2016
22
RAO IIT ACADEMY / Medical - UG / NEET - II / 2016 / Solutions / Code : PP / Chemistry
Q.50 NaCl Na Cl (Fused electrolyte)
Cathode : 2 2 2Na e Na
2Anode : 2 2Cl Cl e
To get 0.1 mole 2 0.2Cl F is required.
0.2 96500 3 (sec)t t is 110 minutes (approx).Topic: Electrochemistry; Sub Topic: Faraday’s laws; L:1 ; Medical-UG ; AIPMT / NEET Exam - 2016
Q.51 3; 1 3 no. of electron 2n p Topic:Atomic structure ; Sub Topic:Quantum number; L:2 ; Medical-UG ; AIPMT / NEET Exam - 2016
Q.52 2 2
1 1
ln lnVT VS nC n RT V
2 1
1 2
ln lnpT PS nC nRT P
Isothermal process; 2 1T T
1
2
ln PS nRP
Topic:Thermodynamics; Sub Topic:Entropy; L:1 ; Medical-UG ; AIPMT / NEET Exam - 2016
Q.53 22( ) ( ) ( )( ) 2s aq aqBa OH Ba OH
In dilution solutions; Assume complete ionisation
1 ( 1) ( 1)1
i n in
3i n Topic:Solution and colligative properties; Sub Topic:Vant Hoff factor; L:1 ; Medical-UG ; AIPMT / NEET
Exam - 2016
Q.54
N+ H O2
N
H
+ OH– ; K = 1.7 × 10b–9
t = 0 Ct = t C–Ceq
–C
–C
22 (1 1)
1b bCK K C
333
RAO IIT ACADEMY / Medical - UG / NEET - II / 2016 / Solutions / Code : PP / Chemistry
94
1
1.7 10 1.3 1010
bKC
2% ionisation 100 1.3 10 Topic:Equilibrium; Sub Topic:Ostald’s dilution law; L:1 ; Medical-UG ; AIPMT / NEET Exam - 2016
Q.55 In fluorite structure; F occupy tetrahedral voids and 2Ca occupy CCp lattice points.
i.e., each 2Ca is surrounded by 8 F ions C.N = 8
each F is surrounded by 4 2Ca ions C.N = 4Topic:Solid Shape; Sub Topic:Ionic crystals; L:1 ; Medical-UG ; AIPMT / NEET Exam - 2016
Q.56 oE is – ve 0oG
ln 1oeq eqG RT K K
Topic:Electrochemistry; Sub Topic: Gibbs free energy & Keq; L:1 ; Medical-UG ; AIPMT / NEET Exam -2016
Q.57 For ideal solutions;0; 0; 0; 0G S H V
Raoult’s law 0 0Total A A B BP P X P X
i.e. obs calculatedP P
incorrect statement is 0mixG
Topic: Solution and colligative properties; Sub Topic: Ideal solutions; L:1 ; Medical-UG ; AIPMT / NEETExam - 2016
Q.58 s aq aqAgCl Ag Cl
spK Ag Cl
101.6 10 0.1Ag 91.6 10Ag M
Topic: Ionic equilibrium; Sub Topic: Solubility product; L:1 ; Medical-UG ; AIPMT / NEET Exam - 2016
Q.59 Let atomic weight of X be : x and Y be : y
10 0.1 2 1x y
9 0.05 3 2 2 18 0.1 3 2x y x y
44
RAO IIT ACADEMY / Medical - UG / NEET - II / 2016 / Solutions / Code : PP / Chemistry
2 1003 2 180x yx y – – –
2 8040
xx
30y
Topic:Mole concept; Sub Topic:Atomic weights ; L:1 ; Medical-UG ; AIPMT / NEET Exam - 2016
Q.60 1 60 60Q C
192060 10no.of electrons 3.745 10
1.602
Topic:Electrochemistry; Sub Topic:Electrolytic cell; L:1 ; Medical-UG ; AIPMT / NEET Exam - 2016
Q.61 3 3 2 342H BO H O B OH H O
Topic:P-Block; Sub Topic:Boric acid; L:1 ; Medical-UG ; AIPMT / NEET Exam - 2016
Q.62 3 3 63AlF KF K Al F
Topic:P-Block; Sub Topic:Alluminium compounds; L:1 ; Medical-UG ; AIPMT / NEET Exam - 2016
Q.63 Zn is more electropositive than Fe.
20
/0.76
Zn ZnE V
2 20 0
/ /0.41 ; 0.04
Fe Fe Fe FeE V E V
zn act as sacrifying metal and protect FeTopic: Electrochemistry; Sub Topic:Prevention of corrosion; L:1 ; Medical-UG ; AIPMT / NEET Exam - 2016
Q.64 Suspension is called milk of lime.Topic:S-block; Sub Topic:Calcium compounds; L:1 ; Medical-UG ; AIPMT / NEET Exam - 2016
Q.652 3 4
2 3
NO NO NHsp sp sp
Topic:Chemical bonding; Sub Topic:Hybridisation; L:1 ; Medical-UG ; AIPMT / NEET Exam - 2016
Q.66
. .
PF
FF
3BF is lewis acid and electron deficient.
4 4,CF SiF have octet configuration and no lone pair to donateTopic: P-block ; Sub Topic:Basic nature; L:1 ; Medical-UG ; AIPMT / NEET Exam - 2016
555
RAO IIT ACADEMY / Medical - UG / NEET - II / 2016 / Solutions / Code : PP / Chemistry
Q.67 2 23 3 3 3
2 2 3 3
32 32 42 42
Trigonal planar Trigonal planar Tetrahedral Tetrahedral
CO NO SO ClOe e e e
sp sp sp sp
Topic:Chemical bonding; Sub Topic:Hybridisation; L:1 ; Medical-UG ; AIPMT / NEET Exam - 2016
Q.68 Beryllim salts readily hydrolyze.Topic:S-block; Sub Topic:Beryllium compounds; L:1 ; Medical-UG ; AIPMT / NEET Exam - 2016
Q.69 2 2 4 4 2CaF H SO CaSO HF
(a) 20
2Cu Cu
(b) 0 4
2S SO
(c) 0 4
2C CO
Topic:Atomic structure; Sub Topic: Shapes of orbitals ; L:1 ; Medical-UG ; AIPMT / NEET Exam - 2016
Q.70 2 2 2;x y zd d are along the axis.
Topic:__________ ; Sub Topic:________ ; L:_ ; Medical-UG ; AIPMT / NEET Exam - 2016
Q.71 48 4no. of hybrid orbitals 6
2XeF
3 2sp d hybridisationoctahedral geometrysquare planar shape
Topic:Chemical bonding; Sub Topic:Hybridisation; L:1 ; Medical-UG ; AIPMT / NEET Exam - 2016
Q.72 4SeF have see-saw shape
4CH have Tetrahedral shape.
3I has bent shape.Trigonal bipyramidal geomentry.
Topic:Chemical bonding; Sub Topic:Hybridisation and geomentry; L:1 ; Medical-UG ; AIPMT / NEET Exam- 2016
Q.73 Trans effect is the labilzation (making more reactive) of ligands, that are trans to certain other ligands.
22 2 3 3 3 32, , , , , , ,Py Cl Br I SCN NO SC NH Ph SO PR AsR CH H
2 4, , ,NO CO CN C H
66
RAO IIT ACADEMY / Medical - UG / NEET - II / 2016 / Solutions / Code : PP / ChemistryTopic:Co-ordination compounds; Sub Topic:Trans effect; L:2 ; Medical-UG ; AIPMT / NEET Exam - 2016
Q.74 (1) Eu shows + 2 state(2) From Pr to Lu due to lanthanoid contraction size decreases therefore basic nature decreases.
(4) 4( )aqCe is good oxidising agent.
(3) is wrong.Topic:__________ ; Sub Topic:________ ; L:_ ; Medical-UG ; AIPMT / NEET Exam - 2016
Q.75 Low spin complexes with 3 6 8 10, , andd d d d electrons does not have John-Teller distortions.
High spin complexes with 3 5 8 10, , ,d d d d electrons does not show John-Teller distortions.Topic:__________ ; Sub Topic:________ ; L:_ ; Medical-UG ; AIPMT / NEET Exam - 2016
Q.76 In friedel-crafts reaction
+ R – Cl Lewisacid
R
+ HCl
Cl
can form
remaining ; are not possible.
Topic:__________ ; Sub Topic:________ ; L:_ ; Medical-UG ; AIPMT / NEET Exam - 2016
Q.77 Coplanar : all atoms must be in same plane.
(2) Puckered structure so no planarity
(3) C CH C3
H C3
C
N
CN
Hydrogens out of plane
(4) no planarity
Planarity is possible due to free rotation it may some time go out of plane.
Topic:__________ ; Sub Topic:________ ; L:_ ; Medical-UG ; AIPMT / NEET Exam - 2016
777
RAO IIT ACADEMY / Medical - UG / NEET - II / 2016 / Solutions / Code : PP / Chemistry
Q.78 6–carbons and 6–carbons during the linkage
(CH )2 4
C
O||
C
O||
(CH )2 6
NH NH n
Topic:Polymers; Sub Topic:Co-polymerisation; L:1; Medical-UG ; AIPMT / NEET Exam - 2016
Q.79NH
5
4 3
21 N
H
NH
i.e., ether (2) (or) (5) carbon.Topic:GOC; Sub Topic: Resonance; L:1 ; Medical-UG ; AIPMT / NEET Exam - 2016
Q.80 (1) HBrBr
propeneelimination
(2) elimination3 2 2 3 2 2 3 2
Propene
HBrH C CH CH OH H C CH CH Br H C CH CH
(3) 2 No reactionH C C O
(4) elimination3 2 2 3 2
PropeneH C CH CH Br H C CH CH
Topic: Hydrocarbon ; Sub Topic:Alkane ; L:2 ; Medical-UG ; AIPMT / NEET Exam - 2016
Q.81 The compound with No H will not react with Nitrous acid.
Option 3 is not having ( )H Topic:Nitrogen and its compounds ; Sub Topic: Chemical properties; L:2 ; Medical-UG ; AIPMT / NEET
Exam - 2016
Q.82 DNA in copies as messenger RNA (mRNA) which in turn is the template for protein synthesis (uses r-RNAand t RNA)
Topic: Biomolecules ; Sub Topic: Proteins ; L:2 ; Medical-UG ; AIPMT / NEET Exam - 2016
Q.83 CHO
OHHOHH
CH OH2
CHO
HHOOHH
CH OH2
CHO
HHOHHO
CH OH2
CHO
OHHHHO
CH OH2
D-erythrose D-threose L-erythrose L-Threose
Topic: Biomolecules ; Sub Topic: Carbohydrate ; L:2 ; Medical-UG ; AIPMT / NEET Exam - 2016
88
RAO IIT ACADEMY / Medical - UG / NEET - II / 2016 / Solutions / Code : PP / Chemistry
Q.84 (i) H+
(ii) H
Topic:Aromatic compounds; Sub Topic:Electrophilic substitution; L:2 ; Medical-UG ; AIPMT / NEET Exam -2016
Q.85NO2
Sn/HClStephensreduction
NH2
HNO2
Diazotisation
(N N)Cl–
(A)
(B)DiazoniumChloride
OH
N N
(azo compound)yellow orange solution
or ppt. is formed
OH
Topic:Nitrogen and its compounds ; Sub Topic: Chemical properties; L:2 ; Medical-UG ; AIPMT / NEETExam - 2016
Q.86 3 2 2 3 2 2H C CH CH Br NaCN H C CH CH CN NaBr
The above reaction follows 2SN mechanism, which is best in Polar Non Protic Solvent i.e., N,N-dimethylformamide (DMF).
Topic:Alkyl and Aryl halide; Sub Topic:ST: SN reaction ; L:2 ; Medical-UG ; AIPMT / NEET Exam - 2016
999
RAO IIT ACADEMY / Medical - UG / NEET - II / 2016 / Solutions / Code : PP / Chemistry
Q.87
O O
H (1-atm)2(g)
Pd/C ethanol
Reduction take place at Non polar unsaturation. i.e., ( )C C Topic:Hydrocarbon ; Sub Topic: Chemical properties ; L:2 ; Medical-UG ; AIPMT / NEET Exam - 2016
Q.88 Tautomerism takes place with carbonyl compound having H atom.H which is at Bridge head C will not get involved in Tautomerism.
Structure (I): H are at bridge head so no Tautomerism.
Structure (II): H is at bridge head and another C is not having H so no Tautomerism.Structure (III): H is presents so can undergo Tautomerism. Only option III will show Tautomerism.
Topic:GOC; Sub Topic:Tautomerism; L:2 ; Medical-UG ; AIPMT / NEET Exam - 2016
Q.89 When an EWG is present close to –COOH due to (-I) effect losing H becomes very easy. (I effect isdistance dependent)Structure-II: –O- is present close to –COOH due to –I effect, after that structure III and then structure (–I) i.e., (II) > (III) > (I).
Topic:GOC ; Sub Topic:Inductive effect; L:2 ; Medical-UG ; AIPMT / NEET Exam - 2016
Q.90 Br Br Br Br
Alkene dissociating heterolytically will favour 2Br addition Reaction.
2 3 2
|Propene
|
Br
Br H C CH CHunsymmetrical
Br
Topic: Hydrocarbon ; Sub Topic:Addition reaction; L:2 ; Medical-UG ; AIPMT / NEET Exam - 2016