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Test - 5 (Code-E) (Answers) All India Aakash Test Series for Medical-2018
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30. (1)
31. (2)
32. (3)
33. (4)
34. (3)
35. (3)
36. (3)
Test Date : 04/02/2018
ANSWERS
TEST - 5 (Code E)
All India Aakash Test Series for Medical - 2018
37. (2)
38. (3)
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162. (1)
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166. (2)
167. (2)
168. (2)
169. (4)
170. (3)
171. (2)
172. (3)
173. (3)
174. (2)
175. (2)
176. (2)
177. (2)
178. (2)
179. (1)
180. (4)
All India Aakash Test Series for Medical-2018 Test - 5 (Code-E) (Hints)
2/7
PHYSICS
1.
R
+
+
+
+
+
+ +
+
+
+
+
+
O
V =Vsphere at centre
– Vcavity
=
2 2
0 0
3
6 12
R R
=
2
0
5
12
R
2.qE
mg sin
qE = mg sin
9 6 2
2
9 10 (4 10 )
d
=
600 310
1000 5 d = 0.2 m
3. E = 0 so force is zero inside. Net charge is positive
on sphere therefore it will repel q towards right.
–q
Q
q
4. |E1| = |E
2| = |E
3| = E
Enet
= 2E = 3
2⎛ ⎞⎜ ⎟⎝ ⎠
Kp
R
3 2
1
120° E2
E1
E3
6. –g
VR G
I
7. V = iR
30 = 5R
R = 6 (ideally)
R =V
i(∵ i in R dec)
But R > 6 (non ideally)
10. qV =
21
2
p
m
13.2 2
( )kQ q
R x
=
2( ) 1
2
kQ qmv
R
14. i1 + i
2 + i
3 = 0
70 0 10
10 20 30
D D DV V V
= 0
VD = 40
iAD
=30
310
iBD
=40
220
iCD
=30
130
70 V
0 V
10 V
20
30
D
10
B
C
A
i1
i3
i2
15.10 3 V
6 3
4.5 V
i1
i – i1
i
2
1
Applying KVL in Loop 1,
–10i1 – 3 + 6(i – i
1) = 0
–16i1 – 3 + 6i
1 = 0 ... (i)
Applying KVL in Loop 2,
–3i – 6(i – i1) + 4.5 = 0 ... (ii)
On solving (i) & (ii), i1 = 0
HINTS
Test - 5 (Code-E) (Hints) All India Aakash Test Series for Medical-2018
3/7
17.
300 V
100
200
100 V 600
i1
i2
Req
= 500
i =100 1
A500 5
i2 =
1 600 6A
5 900 45
V =6
30045
= 40 V
19. qV = U
20. F = qE
2
31 3cos kp
F qr
21. dV Edx
2
3
0
40 ∫ ∫A
O
V
V
dV x dx
VA – V
O = –160 V
23. Distance is measured along electric field line.
24. = 1
24
Q
R =
2
24 (2 )
Q
RQ
1 + Q
2 = 20R2
Now, 1
22
Q R
Q R Q
1 =
220
3R
and Q2 =
240
3R
1 =
1
24
Q
R
and 2 =
2
24 (2 )
Q
R
30. P =
2V
R, R
1 > R
4 > R
2 > R
3
P 1
R, P
1 < P
4 < P
2 < P
3
31. Q = 1000 × 4.2 × 15
Q = 63000 J in 1 minute
P = 60 sec
Q = 1050 W
33. Circuit reduces by using Wheatstone Bridge.
35. i = 18
3.2 RR = 4
37. �AB
V
L
� = 40 cm, L = 100 cm
123 6 V
1 2 3
⎛ ⎞ ⎜ ⎟ ⎝ ⎠AB AB
V iR
38. i = E
r nr
E – i(r) = Terminal voltage
E – ( )E
rr nr
1
⎛ ⎞⎜ ⎟⎝ ⎠
nE
n =Terminal voltage
40. Cu
is +ve
Ge
is –ve
43. Using Gauss law.
CHEMISTRY
47. Nearest neighbour number is 6 in a layer.
48. At normal boiling point vapour pressure of water
= 1 atm = 760 torr
s
3
s
760 P (2 1)So For AgNO , i 2
760 (2 1) 55.5
P 733.56 torr
49. Vapour pressure v/s temp graph is not linear.
50. Freundlich isotherm, x 1
log logK logPm n
Given, log K = 0.3010 K = 2
Slope = tan45° = 1 = 1
n n = 1
x2P 2 0.2 0.4
m
51. Due to very high aqueous radius of Li+ in solution, its
mobility is lowest.
While H+ has exceptionally very high ionic mobility.
It can jump from one to another water molecule
easily.
All India Aakash Test Series for Medical-2018 Test - 5 (Code-E) (Hints)
4/7
52.0
m 2 4 2 4 3 2(K SO Al (SO ) 24H O)
0 0 3 0 2
m m m 42 (K ) 2 (Al ) 4 (SO )
= 2x + 2y + 4z S cm2 mol–1
53. KI(aq) + I2(s) KI
3(aq)
Number of solute particles remains same, so there
is no change in magnitude of colligative property i.e.
freezing point of solution remains same.
54. Limiting value of radius ratio is 0.414 but actually it
is higher.
So distance should be greater than 2 × 250 pm
OR
r0.525
250
r+ = 131.25 pm
Distance between two nearest Cl– ions = a
2
2r 2r
2
2(131.25) 2(250)
539.08 pm2
So distance is 539.168 pm
55. It is due to absorption of water.
57.(I )
(I )
4r 2a
a 624r 220.65 pm
2 2 2 2
58. 1v
1 +
2v
2 =
R(v
1 + v
2) for mixing
so R =
6.5
3 = 2.16 atm
59. HCl and H2O mixture shows negative deviation.
They form maximum boiling azeotropic mixture.
Boiling point should be greater than 100°C.
60.
EaRT
a
K .
E40,000 /
RT
Ae
T
Ea = 40000 × 2 = 8.0 × 104 Cal
61. 10 10
2.303 100 2.303 100k log log
70 20 t 10
⎛ ⎞ ⎛ ⎞ ⎜ ⎟ ⎜ ⎟⎝ ⎠ ⎝ ⎠
t = 100 minutes
62. Number of equivalent of FeSO4 =
W It
E F = NV
N.V = 0.036
∵ M = 0.2 so N = 0.4
0.036V 0.09 L
0.4
64. 2AB22AB(g) + B
2(g)
Initial pressure 100 mm 0 0
Pressure at 5 min 100 – x x
x
2
x(100 x) x 110
2 x = 20 mm
Rate of reaction = 2AB
(P )1 1 20
2 t 2 5
= 2 mm min–1
65. KCl is strong electrolyte, so its graph is
m
c
66.
2o
cell cell 2
0.059 [Zn ]E E log
2 [Cu ]
y = c + m x
so intercept (c) = o
cellE 1.1 V
cell
cell
0.059 0.1E 1.1 log
2 0.01
E 1.07 V
68. Protecting power 1
Gold number
69.
n 1
1/2 1 2
1/2 2 1
(t ) a
(t ) a
⎛ ⎞
⎜ ⎟⎝ ⎠
n 12
3
120 3.2 10
60 8 10
⎛ ⎞ ⎜ ⎟⎜ ⎟⎝ ⎠
2 = (4)n–1
2 = (2)2n–2
2n – 2 = 1
n = 3
2
Unit of K = mol1–n Ln–1 s–1 = mol–1/2 L1/2 s–1
71. ∵ 35.5 g Cl– ions lose = 1 mol e– = NA
so 0.355 g Cl– ions lose = 0.01 mol e– = 0.01 NA
72. Ni is ferromagnetic solid.
74. Number of sphere : Number of TV (HCP lattice)
1 : 2
According to given data it is, 1 : 2 2
3
= 3 : 4
so simplest formula is A3B
4
But it is ionic compound so formula is B4A
3.
Test - 5 (Code-E) (Hints) All India Aakash Test Series for Medical-2018
5/7
76.i N
icn-factor
NaCl : 2 0.1
0.21
MgCl2: 3 0.3
0.452
4 6
5 0.2K [Fe(CN) ] : 0.25
4
3
4 0.4AlCl : 0.53
3
78. Tf = iK
f m
0.2046 = (1 +) 1.86 × 0.1 = 0.1
[OH–] = C = 0.1 × 0.1 = 10–2 M
pOH = –log 10–2 = 2
pH = 14 – 2 = 12
79.3 2 1
m
1.6510 S cm mol
0.15
= 11 × 103 S cm2 mol–1
= 11 × 103 × 10–4 S m2 mol–1
= 1.1 S m2 mol–1
80. Au has higher value of (E°red
) reduction potential
81. H2O + M H
2 + M(OH)
x
So it can’t form O2 gas
83. KI (excess) + AgNO3 AgI/I– (negative sol)
Al3+ has highest +ve charge, so it is most powerful
coagulating agent.
84. ∵ Process is 2H+ + 2e– H2
0.02 M 4.0 atm
H2
2H |H2
2
p0.0591E log
2 [H ]
0.0591 4log
2 (0.02)
0.118 V
86. Rate = k[O
3] [O]
∵ [O] = Keq
[O3] [O
2]–1
Rate = kKeq
[O3]2 [O
2]–1
Overall order is = 2 – 1 = 1
87. H = (Ea)f – (E
a)b
–20 = 60 – (Ea)b
(Ea)b = 80 kJ/mol
88. Greater the size of ion, lesser the solvation and
higher conductance.
89. Since (x) with time increasing uniformly so change
in concentration of [A] or [B] with time i.e. d[A]
dt is
constant.
90. Since both have fcc type arrangement so Zeff
= 4
per unit cell
∵ Packing efficiency also same
3
KCl
3
NaCl
1/3
KCl
NaCl
a Volume of unit cell of KCl xso
Volume of unit cell of NaCl ya
a
a
⎛ ⎞ ⎜ ⎟⎝ ⎠
x
y
BIOLOGY
91. Geiotonogamy can occur on monoecious plant.
93. Epiblast is present in embryo of monocot seeds.
95. Filiform apparatus is present in synergids.
96. Hydrophily is seen in 30 genera, mostly
monocotyledons.
97. Ploidy of PEN = Full ploidy of female plant + 1
2ploidy
of male plant = 2n + 1/2(4n) = 4n
Ploidy of zygote = 1
2 ploidy of female plant +
1
2
ploidy of male plant
= 1/2(2n) + 1/2(4n)
= n + 2n
= 3n
98. Also called non-endospermic seeds.
100. Cells of endothecium are persistent.
102. IA, IB, i
103. Phenotype of dihybrid cross in F2 generation.
= Round yellow : Round green : Wrinkled yellow :
Wrinkled green
= 9 : 3 : 3 : 1
Hence, ratio of round green and wrinkled yellow
= 3 : 3
= 1 : 1
105. Type of gametes = 2n.
Here, n is heterozygous genes = 22 = 4
All India Aakash Test Series for Medical-2018 Test - 5 (Code-E) (Hints)
6/7
106. Algae are both isogametes and heterogametes but
pollens are not produced.
107. Options (2), (3) and (4) monocarpic plants while in
option.
(1) Peepal and mango are polycarpic plants.
108. Embryogenesis is a post fertilisation event.
110. In Apple 2n = 34.
112. Incomplete dominance.
113. The phenotype of test cross progeny is due to the
gametes of RrYyTt, as gametes of rryytt are
recessive, non expressing.
114. Father Mother
Ff
× Ff
Free ear lobes(3/4)
FF Ff Ff�����
Free ear lobes(1/4)
ff
�����
A. Free ear lobed boy = 3 1 3
4 2 8
B. Fused ear lobed girl = 1 1 1
4 2 8
115. Green seed colour is recessive trait.
116. Brachydactyly is a autosomal dominant trait.
117. Dominant epistasis : 12 : 3 : 1.
118. It is trisomy of 21st chromosome (2n + 1) = 47.
119. Overall masculine development occur in Klinefelter’s
syndrome.
121.
123. In Morgan dihybrid cross parental type progeny are
62.8%. Hence Genotype of w+ m+ = 62.8
4 = 15.7%
124. Genotype = AA + ZZ, male birds.
Gametes are (A + Z)
125. Haemophilia is X-linked recessive disorder
126. It is an autosomal recessive disease.
127. 6x = 2n = 42
n = 21
x = 7
M = 2n–1 = 41
128. Terror of Bengal-water hyacinth (Eichhornia).
131. Exine is outer wall of pollen grain.
134. No. of genotypes = (3)n,
Here n is no. of heterozygous genes
= 34
= 81
No. of phenotypes = (2)n
Here n is no. of heterozygous genes
= (2)4
= 16
135. It shows both linkage and Choromosomal map but
X-body was discovered in Firefly.
136. Life span is the period from birth to natural death of
an organism. Maximum life span is characteristic of
species while life expectancy is characteristic of
population.
137. Spermatogenesis essentially requires temperature
(2-2.5 °C) lower than 37°C.
138. Butterfly 1-2 weeks, Crocodile 60 years, Crow
15 years, Tortoise 100-150 years
139. Sexual reproduction is an elaborate, complex and
slow process
140. Simple binary fission – Amoeba
Longitudinal binary fission – Euglena ,Vorticella
Oblique binary fission – Ceratium, Gonyaulax
Transverse binary fission – Paramecium, Planaria.
141. Colostrum is poor in iron content and contains
2.9 g/dl of fats. Calories are obtained both from fat
and lactose. Mammary glands are modified sweat
glands. Ejection of milk is stimulated by oxytocin.
142. Spermatogenia has 46 chromosomes. Meiosis I in
primary spermatocyte results in formation of
secondary spermatocyte (22+X or 22+Y).
Primary oocyte will be diploid with (44+XX)
chromosomes.
143. Fact
144. MTP is never performed to control population growth.
MTP is usually safe upto 12 weeks.
145. Venereal diseases are those diseases or infections
that are spread through sexual intercourse.
Measles, diptheria, dengue and yellow fever do not
fall in this category.
Test - 5 (Code-E) (Hints) All India Aakash Test Series for Medical-2018
7/7
� � �
146. P. LH which is essential for maintenance of corpus
luteum.
Q. Estrogen is secreted by follicular cells and it
helps to repair the lost endometrium in
proliferative phase.
R. Progesterone that is essential for maintenance
of endometrium.
147. Menstrual flow results due to breakdown of
endometrial lining
148. Lactational amenorrhoea is effective upto 6 months
(maximum) after delivery of the foetus.
149. Arrhenotoky – Honey bees, wasp and turkey.
Thelytoky – Lacerta saxicola armeniaca.
Amphitoky – Aphid
150. Fact
151. Parathyroid gland is endodermal in origin while other
options are ectodermal.
153. Clones are morphologically and genetically similar
individuals
154. Isthmus part of fallopian tube is closer to uterus.
155. At puberty only 60,000 – 80,000 primary follicles are
left in each ovary due to atresia.
156. Nirodh is another name for condom.
Femidom is female condom which is not a
hormonal contraceptive.
157. Secondary oocyte is formed in tertiary follicle.
158. Secretions of Cowper’s gland neutralise acidity.
Seminal vesicles are paired, tubular, coiled glands,
secrete viscous fluid which constitute main part of
ejaculate. Seminal fluid contains fructose, citric acid
and fibrinogen. Prostate gland is unpaired.
159. Functional sperms should have proper shape, size
and motility.
160. Hepatitis B and HIV can be spread by sexual
contact, blood transfusion with infected person.
161. Oogonia are arrested at prophase I (diplotene stage)
of meiotic division.
162. Secondary follicles have a layers of granulosa cell
with new theca surrounding primary oocytes.
Follicular cells secrete estrogen.
163. Trichomonas vaginalis, a flagellated protozoa causes
trichomoniasis.
164. Gonorrhoea – Neisseria gonorrhoeae
Syphilis – Treponema pallidum
Chlamydia – Chlamydia trachomatis
Genital herpes – Herpes simplex virus
Chancroid – Haemophilus ducrei
165. Cyclofem, Depot medroxy provera are hormonal
injectables. Implanon and norplant are implants.
Mala-D is a pill. Sponge is a chemical spermicide.
166. Terminal methods block only gamete transport.
Hormone functions and gametogenesis are
unaffected.
167. IUDs are widely accepted methods of contraception.
That are inserted by an experienced, expert nurse
or doctor.
168. POP is an example of mini pill with no estrogen
169. Both ovulation and menstrual cycles are unaffected.
170. GIFT is in-vivo technique.
171. Meiotic division of secondary oocyte is completed
when sperm enters into the cytoplasm of ovum.
172. Embryo with 8 to 16 cells is called morula.
173. Umblical cord contains only foetal blood.
Embryo is susceptible to teratogens maximally
during first trimester of pregnancy.
174. After 12 weeks of fertilisation, most of the major
organ systems are formed.
175. AMF is secreted by sertoli cells / sustentacular cell
176. Amniocentesis is not a contraceptive technique
ultrasound is used for determination of club foot cleft
palate etc.
177. Signals for parturition originate from fully developed
foetus and placenta.
178. Lanugo appears at third trimester and is shed before
birth
179. Fact
Test - 5 (Code-F) (Answers) All India Aakash Test Series for Medical-2018
1/7
1. (3)
2. (2)
3. (4)
4. (2)
5. (3)
6. (4)
7. (1)
8. (3)
9. (2)
10. (3)
11. (3)
12. (3)
13. (4)
14. (3)
15. (2)
16. (1)
17. (4)
18. (2)
19. (3)
20. (1)
21. (2)
22. (1)
23. (1)
24. (2)
25. (1)
26. (2)
27. (3)
28. (2)
29. (3)
30. (2)
31. (1)
32. (1)
33. (2)
34. (3)
35. (3)
36. (3)
Test Date : 04/02/2018
ANSWERS
TEST - 5 (Code F)
All India Aakash Test Series for Medical - 2018
37. (4)
38. (2)
39. (3)
40. (2)
41. (4)
42. (2)
43. (1)
44. (2)
45. (3)
46. (1)
47. (3)
48. (3)
49. (3)
50. (1)
51. (1)
52. (1)
53. (3)
54. (1)
55. (3)
56. (1)
57. (2)
58. (2)
59. (2)
60. (4)
61. (4)
62. (3)
63. (2)
64. (4)
65. (2)
66. (2)
67. (3)
68. (3)
69. (1)
70. (1)
71. (4)
72. (4)
73. (1)
74. (3)
75. (3)
76. (3)
77. (4)
78. (4)
79. (1)
80. (4)
81. (3)
82. (3)
83. (3)
84. (2)
85. (3)
86. (1)
87. (3)
88. (2)
89. (4)
90. (3)
91. (4)
92. (1)
93. (4)
94. (4)
95. (1)
96. (4)
97. (3)
98. (1)
99. (3)
100. (2)
101. (4)
102. (2)
103. (1)
104. (4)
105. (1)
106. (2)
107. (4)
108. (2)
109. (2)
110. (3)
111. (3)
112. (3)
113. (4)
114. (3)
115. (2)
116. (1)
117. (2)
118. (2)
119. (1)
120. (3)
121. (2)
122. (1)
123. (2)
124. (4)
125. (2)
126. (1)
127. (3)
128. (1)
129. (1)
130. (2)
131. (3)
132. (2)
133. (3)
134. (2)
135. (1)
136. (4)
137. (1)
138. (2)
139. (2)
140. (2)
141. (2)
142. (2)
143. (3)
144. (3)
145. (2)
146. (3)
147. (4)
148. (2)
149. (2)
150. (2)
151. (1)
152. (2)
153. (2)
154. (1)
155. (2)
156. (3)
157. (2)
158. (4)
159. (3)
160. (3)
161. (1)
162. (2)
163. (4)
164. (1)
165. (2)
166. (2)
167. (2)
168. (3)
169. (2)
170. (4)
171. (2)
172. (2)
173. (3)
174. (4)
175. (2)
176. (4)
177. (3)
178. (3)
179. (3)
180. (3)
All India Aakash Test Series for Medical-2018 Test - 5 (Code-F (Hints)
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PHYSICS
3. Using Gauss law.
6. Cu
is +ve
Ge
is –ve
8. i = E
r nr
E – i(r) = Terminal voltage
E – ( )E
rr nr
1
⎛ ⎞⎜ ⎟⎝ ⎠
nE
n =Terminal voltage
9. �AB
V
L
� = 40 cm, L = 100 cm
123 6 V
1 2 3
⎛ ⎞ ⎜ ⎟ ⎝ ⎠AB AB
V iR
11. i = 18
3.2 RR = 4
13. Circuit reduces by using Wheatstone Bridge.
15. Q = 1000 × 4.2 × 15
Q = 63000 J in 1 minute
P = 60 sec
Q = 1050 W
16. P =
2V
R, R
1 > R
4 > R
2 > R
3
P 1
R, P
1 < P
4 < P
2 < P
3
22. = 1
24
Q
R =
2
24 (2 )
Q
RQ
1 + Q
2 = 20R2
Now, 1
22
Q R
Q R Q
1 =
220
3R
and Q2 =
240
3R
1 =
1
24
Q
R
and 2 =
2
24 (2 )
Q
R
23. Distance is measured along electric field line.
25. dV Edx
2
3
0
40 ∫ ∫A
O
V
V
dV x dx
VA – V
O = –160 V
26. F = qE
2
31 3cos kp
F qr
27. qV = U
29.
300 V
100
200
100 V 600
i1
i2
Req
= 500
i =100 1
A500 5
i2 =
1 600 6A
5 900 45
V =6
30045
= 40 V
31.10 3 V
6 3
4.5 V
i1
i – i1
i
2
1
Applying KVL in Loop 1,
–10i1 – 3 + 6(i – i
1) = 0
–16i1 – 3 + 6i
1 = 0 ... (i)
Applying KVL in Loop 2,
–3i – 6(i – i1) + 4.5 = 0 ... (ii)
On solving (i) & (ii), i1 = 0
32. i1 + i
2 + i
3 = 0
70 0 10
10 20 30
D D DV V V
= 0
HINTS
Test - 5 (Code-F) (Hints) All India Aakash Test Series for Medical-2018
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VD = 40
iAD
=30
310
iBD
=40
220
iCD
=30
130
70 V
0 V
10 V
20
30
D
10
B
C
A
i1
i3
i2
33.2 2
( )kQ q
R x
=
2( ) 1
2
kQ qmv
R
36. qV =
21
2
p
m
39. V = iR
30 = 5R
R = 6 (ideally)
R =V
i(∵ i in R dec)
But R > 6 (non ideally)
40. –g
VR G
I
42. |E1| = |E
2| = |E
3| = E
Enet
= 2E = 3
2⎛ ⎞⎜ ⎟⎝ ⎠
Kp
R
3 2
1
120° E2
E1
E3
43. E = 0 so force is zero inside. Net charge is positive
on sphere therefore it will repel q towards right.
–q
Q
q
44.qE
mg sin
qE = mg sin
9 6 2
2
9 10 (4 10 )
d
=
600 310
1000 5 d = 0.2 m
45.
R
+
+
+
+
+
+ +
+
+
+
+
+
O
V =Vsphere at centre
– Vcavity
=
2 2
0 0
3
6 12
R R
=
2
0
5
12
R
CHEMISTRY
46. Since both have fcc type arrangement so Zeff
= 4
per unit cell
∵ Packing efficiency also same
3
KCl
3
NaCl
1/3
KCl
NaCl
a Volume of unit cell of KCl xso
Volume of unit cell of NaCl ya
a
a
⎛ ⎞ ⎜ ⎟⎝ ⎠
x
y
47. Since (x) with time increasing uniformly so change
in concentration of [A] or [B] with time i.e. d[A]
dt is
constant.
48. Greater the size of ion, lesser the solvation and
higher conductance.
49. H = (Ea)f – (E
a)b
–20 = 60 – (Ea)b
(Ea)b = 80 kJ/mol
50. Rate = k[O3] [O]
∵ [O] = Keq
[O3] [O
2]–1
Rate = kKeq
[O3]2 [O
2]–1
Overall order is = 2 – 1 = 1
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52. ∵ Process is 2H+ + 2e– H2
0.02 M 4.0 atm
H2
2H |H2
2
p0.0591E log
2 [H ]
0.0591 4log
2 (0.02)
0.118 V
53. KI (excess) + AgNO
3 AgI/I– (negative sol)
Al3+ has highest +ve charge, so it is most powerful
coagulating agent.
55. H2O + M H
2 + M(OH)
x
So it can’t form O2 gas
56. Au has higher value of (E°red
) reduction potential
57.3 2 1
m
1.6510 S cm mol
0.15
= 11 × 103 S cm2 mol–1
= 11 × 103 × 10–4 S m2 mol–1
= 1.1 S m2 mol–1
58. Tf = iK
f m
0.2046 = (1 +) 1.86 × 0.1 = 0.1
[OH–] = C = 0.1 × 0.1 = 10–2 M
pOH = –log 10–2 = 2
pH = 14 – 2 = 12
60.i N
icn-factor
NaCl : 2 0.1
0.21
MgCl2: 3 0.3
0.452
4 6
5 0.2K [Fe(CN) ] : 0.25
4
3
4 0.4AlCl : 0.53
3
62. Number of sphere : Number of TV (HCP lattice)
1 : 2
According to given data it is, 1 : 2 2
3
= 3 : 4
so simplest formula is A3B
4
But it is ionic compound so formula is B4A
3.
64. Ni is ferromagnetic solid.
65. ∵ 35.5 g Cl– ions lose = 1 mol e– = NA
so 0.355 g Cl– ions lose = 0.01 mol e– = 0.01 NA
67.
n 1
1/2 1 2
1/2 2 1
(t ) a
(t ) a
⎛ ⎞
⎜ ⎟⎝ ⎠
n 12
3
120 3.2 10
60 8 10
⎛ ⎞ ⎜ ⎟⎜ ⎟⎝ ⎠
2 = (4)n–1
2 = (2)2n–2
2n – 2 = 1
n = 3
2
Unit of K = mol1–n Ln–1 s–1 = mol–1/2 L1/2 s–1
68. Protecting power 1
Gold number
70.
2o
cell cell 2
0.059 [Zn ]E E log
2 [Cu ]
y = c + m x
so intercept (c) = o
cellE 1.1 V
cell
cell
0.059 0.1E 1.1 log
2 0.01
E 1.07 V
71. KCl is strong electrolyte, so its graph is
m
c
72. 2AB22AB(g) + B
2(g)
Initial pressure 100 mm 0 0
Pressure at 5 min 100 – x x
x
2
x(100 x) x 110
2 x = 20 mm
Rate of reaction = 2AB
(P )1 1 20
2 t 2 5
= 2 mm min–1
74. Number of equivalent of FeSO4 =
W It
E F = NV
N.V = 0.036
∵ M = 0.2 so N = 0.4
0.036V 0.09 L
0.4
75. 10 10
2.303 100 2.303 100k log log
70 20 t 10
⎛ ⎞ ⎛ ⎞ ⎜ ⎟ ⎜ ⎟⎝ ⎠ ⎝ ⎠
t = 100 minutes
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76.
EaRT
a
K .
E40,000 /
RT
Ae
T
Ea = 40000 × 2 = 8.0 × 104 Cal
77. HCl and H2O mixture shows negative deviation.
They form maximum boiling azeotropic mixture.
Boiling point should be greater than 100°C.
78. 1v
1 +
2v
2 =
R(v
1 + v
2) for mixing
so R =
6.5
3 = 2.16 atm
79.(I )
(I )
4r 2a
a 624r 220.65 pm
2 2 2 2
81. It is due to absorption of water.
82. Limiting value of radius ratio is 0.414 but actually it
is higher.
So distance should be greater than 2 × 250 pm
OR
r0.525
250
r+ = 131.25 pm
Distance between two nearest Cl– ions = a
2
2r 2r
2
2(131.25) 2(250)
539.08 pm2
So distance is 539.168 pm
83. KI(aq) + I2(s) KI
3(aq)
Number of solute particles remains same, so there
is no change in magnitude of colligative property i.e.
freezing point of solution remains same.
84.0
m 2 4 2 4 3 2(K SO Al (SO ) 24H O)
0 0 3 0 2
m m m 42 (K ) 2 (Al ) 4 (SO )
= 2x + 2y + 4z S cm2 mol–1
85. Due to very high aqueous radius of Li+ in solution, its
mobility is lowest.
While H+ has exceptionally very high ionic mobility.
It can jump from one to another water molecule
easily.
86. Freundlich isotherm, x 1
log logK logPm n
Given, log K = 0.3010 K = 2
Slope = tan45° = 1 = 1
n n = 1
x2P 2 0.2 0.4
m
87. Vapour pressure v/s temp graph is not linear.
88. At normal boiling point vapour pressure of water
= 1 atm = 760 torr
s
3
s
760 P (2 1)So For AgNO , i 2
760 (2 1) 55.5
P 733.56 torr
89. Nearest neighbour number is 6 in a layer.
BIOLOGY
91. It shows both linkage and Choromosomal map but
X-body was discovered in Firefly.
94. No. of genotypes = (3)n,
Here n is no. of heterozygous genes
= 34
= 81
No. of phenotypes = (2)n
Here n is no. of heterozygous genes
= (2)4
= 16
95. Exine is outer wall of pollen grain.
98. Terror of Bengal-water hyacinth (Eichhornia).
99. 6x = 2n = 42
n = 21
x = 7
M = 2n–1 = 41
100. It is an autosomal recessive disease.
101. Haemophilia is X-linked recessive disorder
102. Genotype = AA + ZZ, male birds.
Gametes are (A + Z)
103. In Morgan dihybrid cross parental type progeny are
62.8%. Hence Genotype of w+ m+ = 62.8
4 = 15.7%
105.
All India Aakash Test Series for Medical-2018 Test - 5 (Code-F (Hints)
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107. Overall masculine development occur in Klinefelter’s
syndrome.
108. It is trisomy of 21st chromosome (2n + 1) = 47.
109. Dominant epistasis : 12 : 3 : 1.
110. Brachydactyly is a autosomal dominant trait.
111. Green seed colour is recessive trait.
112. Father Mother
Ff
× Ff
Free ear lobes(3/4)
FF Ff Ff�����
Free ear lobes(1/4)
ff
�����
A. Free ear lobed boy = 3 1 3
4 2 8
B. Fused ear lobed girl = 1 1 1
4 2 8
113. The phenotype of test cross progeny is due to the
gametes of RrYyTt, as gametes of rryytt are
recessive, non expressing.
114. Incomplete dominance.
116. In Apple 2n = 34.
118. Embryogenesis is a post fertilisation event.
119. Options (2), (3) and (4) monocarpic plants while in
option.
(1) Peepal and mango are polycarpic plants.
120. Algae are both isogametes and heterogametes but
pollens are not produced.
121. Type of gametes = 2n.
Here, n is heterozygous genes = 22 = 4
123. Phenotype of dihybrid cross in F2 generation.
= Round yellow : Round green : Wrinkled yellow :
Wrinkled green
= 9 : 3 : 3 : 1
Hence, ratio of round green and wrinkled yellow
= 3 : 3
= 1 : 1
124. IA, IB, i
126. Cells of endothecium are persistent.
128. Also called non-endospermic seeds.
129. Ploidy of PEN = Full ploidy of female plant + 1
2ploidy
of male plant = 2n + 1/2(4n) = 4n
Ploidy of zygote = 1
2 ploidy of female plant +
1
2
ploidy of male plant
= 1/2(2n) + 1/2(4n) = n + 2n = 3n
130. Hydrophily is seen in 30 genera, mostly
monocotyledons.
131. Filiform apparatus is present in synergids.
133. Epiblast is present in embryo of monocot seeds.
135. Geiotonogamy can occur on monoecious plant.
137. Fact
138. Lanugo appears at third trimester and is shed before
birth
139. Signals for parturition originate from fully developed
foetus and placenta.
140. Amniocentesis is not a contraceptive technique
ultrasound is used for determination of club foot cleft
palate etc.
141. AMF is secreted by sertoli cells / sustentacular cell
142. After 12 weeks of fertilisation, most of the major
organ systems are formed.
143. Umblical cord contains only foetal blood.
Embryo is susceptible to teratogens maximally
during first trimester of pregnancy.
144. Embryo with 8 to 16 cells is called morula.
145. Meiotic division of secondary oocyte is completed
when sperm enters into the cytoplasm of ovum.
146. GIFT is in-vivo technique.
147. Both ovulation and menstrual cycles are unaffected.
148. POP is an example of mini pill with no estrogen
149. IUDs are widely accepted methods of contraception.
That are inserted by an experienced, expert nurse
or doctor.
150. Terminal methods block only gamete transport.
Hormone functions and gametogenesis are
unaffected.
151. Cyclofem, Depot medroxy provera are hormonal
injectables. Implanon and norplant are implants.
Mala-D is a pill. Sponge is a chemical spermicide.
152. Gonorrhoea – Neisseria gonorrhoeae
Syphilis – Treponema pallidum
Chlamydia – Chlamydia trachomatis
Genital herpes – Herpes simplex virus
Chancroid – Haemophilus ducrei
153. Trichomonas vaginalis, a flagellated protozoa causes
trichomoniasis.
154. Secondary follicles have a layers of granulosa cell
with new theca surrounding primary oocytes.
Follicular cells secrete estrogen.
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� � �
155. Oogonia are arrested at prophase I (diplotene stage)
of meiotic division.
156. Hepatitis B and HIV can be spread by sexual
contact, blood transfusion with infected person.
157. Functional sperms should have proper shape, size
and motility.
158. Secretions of Cowper’s gland neutralise acidity.
Seminal vesicles are paired, tubular, coiled glands,
secrete viscous fluid which constitute main part of
ejaculate. Seminal fluid contains fructose, citric acid
and fibrinogen. Prostate gland is unpaired.
159. Secondary oocyte is formed in tertiary follicle.
160. Nirodh is another name for condom.
Femidom is female condom which is not a
hormonal contraceptive.
161. At puberty only 60,000 – 80,000 primary follicles are
left in each ovary due to atresia.
162. Isthmus part of fallopian tube is closer to uterus.
163. Clones are morphologically and genetically similar
individuals
165. Parathyroid gland is endodermal in origin while other
options are ectodermal.
166. Fact
167. Arrhenotoky – Honey bees, wasp and turkey.
Thelytoky – Lacerta saxicola armeniaca.
Amphitoky – Aphid
168. Lactational amenorrhoea is effective upto 6 months
(maximum) after delivery of the foetus.
169. Menstrual flow results due to breakdown of
endometrial lining
170. P. LH which is essential for maintenance of corpus
luteum.
Q. Estrogen is secreted by follicular cells and it
helps to repair the lost endometrium in
proliferative phase.
R. Progesterone that is essential for maintenance
of endometrium.
171. Venereal diseases are those diseases or infections
that are spread through sexual intercourse.
Measles, diptheria, dengue and yellow fever do not
fall in this category.
172. MTP is never performed to control population growth.
MTP is usually safe upto 12 weeks.
173. Fact
174. Spermatogenia has 46 chromosomes. Meiosis I in
primary spermatocyte results in formation of
secondary spermatocyte (22+X or 22+Y).
Primary oocyte will be diploid with (44+XX)
chromosomes.
175. Colostrum is poor in iron content and contains
2.9 g/dl of fats. Calories are obtained both from fat
and lactose. Mammary glands are modified sweat
glands. Ejection of milk is stimulated by oxytocin.
176. Simple binary fission – Amoeba
Longitudinal binary fission – Euglena ,Vorticella
Oblique binary fission – Ceratium, Gonyaulax
Transverse binary fission – Paramecium, Planaria.
177. Sexual reproduction is an elaborate, complex and
slow process
178. Butterfly 1-2 weeks, Crocodile 60 years, Crow
15 years, Tortoise 100-150 years
179. Spermatogenesis essentially requires temperature
(2-2.5 °C) lower than 37°C.
180. Life span is the period from birth to natural death of
an organism. Maximum life span is characteristic of
species while life expectancy is characteristic of
population.