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Test - 5 (Code-A) (Answers) All India Aakash Test Series for Medical-2018
1/6
1. (4)
2. (3)
3. (3)
4. (4)
5. (1)
6. (2)
7. (2)
8. (2)
9. (1)
10. (4)
11. (1)
12. (2)
13. (3)
14. (1)
15. (3)
16. (1)
17. (4)
18. (4)
19. (2)
20. (1)
21. (2)
22. (2)
23. (1)
24. (1)
25. (2)
26. (1)
27. (4)
28. (2)
29. (2)
30. (2)
31. (1)
32. (1)
33. (1)
34. (3)
35. (1)
36. (3)
Test Date : 17/12/2017
ANSWERS
TEST - 5 (Code A)
All India Aakash Test Series for Medical - 2018
37. (4)
38. (1)
39. (1)
40. (2)
41. (2)
42. (2)
43. (3)
44. (1)
45. (3)
46. (2)
47. (2)
48. (3)
49. (2)
50. (4)
51. (2)
52. (4)
53. (1)
54. (2)
55. (3)
56. (2)
57. (3)
58. (3)
59. (1)
60. (4)
61. (2)
62. (3)
63. (4)
64. (3)
65. (3)
66. (1)
67. (1)
68. (2)
69. (2)
70. (4)
71. (4)
72. (1)
73. (4)
74. (3)
75. (2)
76. (4)
77. (4)
78. (4)
79. (2)
80. (4)
81. (4)
82. (4)
83. (1)
84. (4)
85. (4)
86. (2)
87. (4)
88. (2)
89. (2)
90. (4)
91. (4)
92. (2)
93. (2)
94. (3)
95. (4)
96. (4)
97. (1)
98. (2)
99. (3)
100.(Deleted)
101. (1)
102. (4)
103. (1)
104. (3)
105. (3)
106. (3)
107. (2)
108. (3)
109. (3)
110. (3)
111. (4)
112. (3)
113. (1)
114. (2)
115. (4)
116. (3)
117. (4)
118. (2)
119. (2)
120. (1)
121. (2)
122. (2)
123.(Deleted)
124. (1)
125. (2)
126. (2)
127. (4)
128. (2)
129. (2)
130. (3)
131. (1)
132. (1)
133. (3)
134. (2)
135. (1)
136. (1)
137. (2)
138. (3)
139. (3)
140. (1)
141. (2)
142. (4)
143. (3)
144. (4)
145. (4)
146. (4)
147. (2)
148. (3)
149. (2)
150. (2)
151. (3)
152. (4)
153. (2)
154. (2)
155. (2)
156. (2)
157. (4)
158. (3)
159. (1)
160. (3)
161. (1)
162. (4)
163. (4)
164. (2)
165. (3)
166. (4)
167. (2)
168. (4)
169. (1)
170. (2)
171. (3)
172. (4)
173. (3)
174. (3)
175. (4)
176. (2)
177. (2)
178. (2)
179. (3)
180. (3)
All India Aakash Test Series for Medical-2018 Test - 5 (Code-A) (Hints)
2/6
PHYSICS
1. 0F P � �
F�
should be normal to P�
.
2. For man, N + T = Mg
For box, T = N
2
MgN
3. friction
3 310 (250)10 750 J
10 10W Mg
⎛ ⎞ ⎜ ⎟⎝ ⎠
5.21
60 (4) (3)(4)2
0 3( ) 3 st t ⇒
6.1 1 2 2
cm 1 2
1 2
ˆ( )m a m a
a a a gjm m
� �
� � �
7. cosLf mg
8.dv
gdt
4t g
9.
M1
M2
1R
2
2R2
T
T
ff
2
1T f M R
2
2T f M R
1f M g
10. cosN mg
tan 2dy
xdx
x = 2, tan = 4
12.100 N
M
50 N
2502.5 m/s
20a
Acceleration of pulley = 2
a
14.
22
2Va g
R
⎛ ⎞ ⎜ ⎟
⎜ ⎟⎝ ⎠
15.
60º
60º
2 sin60ºmuF
t
16.2
m/s3 3
mg ga
m
3
mgw d
⎛ ⎞ ⎜ ⎟⎝ ⎠
17.5 ˆ ˆ ˆ ˆ( )( )2
w i j i j
w = 0
18. 1/3v x
19. 0dU
dx at x = 2
2
20
d U
dx
20.21
0 (2 )2mv d R
210 (2 ) ( )
2m v nd R
21.
f
vt
f cos
( cos )w f vt
sinf mg
23.2td
edt
,2
2td
edt
2 2 2( ) ( )a r r
25.
2
3
R
5
3
R
3
R
R
F
2
HINTS
Test - 5 (Code-A) (Hints) All India Aakash Test Series for Medical-2018
3/6
52
2 3 3
F R RR Mg
⎛ ⎞ ⎜ ⎟⎝ ⎠
30.
2
cos2
gtL mu
2L t
31.
2
2
2
21
h kF
R Rf
k
R
⎛ ⎞⎜ ⎟
⎜ ⎟⎝ ⎠
33.
X
X
2L
2 2X L
2 212 sin 45
3I MX
⎛ ⎞ ⎜ ⎟⎝ ⎠
36.2
2
tan
1R
k
⎛ ⎞⎜ ⎟
⎜ ⎟⎝ ⎠
37.0
2
21
vV
k
R
⎛ ⎞⎜ ⎟
⎜ ⎟⎝ ⎠
38. a r � ��
39. In Hz. dir. Xcm
= 0
30°
M
m
l
X
cos30l mX
m M
40. L r P � �
�
41. cm
x dm
x
dm
∫∫
43.2
cos3
44. 2tane
CHEMISTRY
46.
1– 2 2
2 2
1 0 0
2HI H I
���⇀↽��� ; = 0.5
c 2 2
1 1 1 1
12 2 4 4 4 4K 0.25
1 411–1–
42
⎛ ⎞ ⎛ ⎞⎜ ⎟⎜ ⎟ ⎝ ⎠⎝ ⎠
47. Fact
48. Lighter gas will effuse faster from orifice, so its mole
fraction will be least in remaining gas and partial
pressure will also be lowest.
49. –4
a
1 1pH pK – logc – log 4 10 – log 0.05
2 2⎡ ⎤ ⎡ ⎤⎣ ⎦ ⎣ ⎦
14 – log4 – log0.05
2
= 2.35
50. Hf
o is calculated from elements only.
51. Mixture of weak acid and its salt with strong base
is an acidic buffer.
52. On adding HCl gas, NH3 will react with it, so
equilibrium is shifted in forward direction.
53. 2
aP V b RT
V
⎛ ⎞ ⎜ ⎟⎝ ⎠
At low P, V is large
V b V
2
aP V RT
V
⎛ ⎞ ⎜ ⎟⎝ ⎠
a
PV RTV
aPV RT
V
54.KOH K OH
0.1 M 0.1 M
3
3Al(OH) Al 3OH
s (3s 0.1)
���⇀↽���
Ksp
= [Al+3] [OH–]3
= (s) (3s + 0.1)3 3s + 0.1 0.1 only
1.9 × 10–33 = s × (0.1)3
s = 1.9 × 10–30 M
55. n – nc
p c
p
KK K RT RT
K
⇒
c2 2
p
K1. N O 2NO, n 0 1
K ���⇀
↽���
All India Aakash Test Series for Medical-2018 Test - 5 (Code-A) (Hints)
4/6
2c2 2 3
p
K2. N 3H 2NH , n –2 RT
K ���⇀
↽���
–1c5 3 2
p
K3. PCl PCl Cl , n 1 RT
K ���⇀
↽���
c2 2
p
K4. 2HI H l , n 0 1
K ���⇀
↽���
56. 6 5 2 2 2
15C H COOH(s) O (g) 7CO (g) 3H O(l)
2
g
15 1n 7
2 2
gH E n RT
RTx E
2
RTE x
2
32 300 10
x2
= –x + 0.3
57. CH COOH + NaOH 3
CH COONa + H O3 2
Initially
After reaction
0.2 × 250
50 – 20
0.1 × 200
20 – 20
×
20
×
= 50
= 30
= 20
= 0
milli moles
milli moles
20
Finally solution contains weak acid and its salt with
strong base, so it is a case of acidic buffer.
pH = a
[Salt]pK log
[Acid]
= 20
4.74 log30
⎡ ⎤ ⎢ ⎥⎣ ⎦
= 4.74 + log 2 – log 3
= 4.74 + 0.30 – 0.48
= 4.56
58. pH is an intensive property.
59. On mixing equal volumes of acidic solutions
–3
0.01 0.001H 5.5 10
2
⎡ ⎤ ⎣ ⎦
–3
pH – log 5.5 10 2.26
60. Average velocity = (2 2.0) (4 3.0) (3 4.0)
2 4 3
= 28
9
Most probable velocity = 3
Ratio = 28 / 9 28
3 27
61.f
eqb
K 3xK 3
K x
62. (i) T1 < T
2 < T
3 (correct)
(ii) T3 < T
2 < T
1 (correct)
(iii)K
PV
logP logV logK
y ( 1)x c
63.3 2NH H S
p
(p )(p )K
1
NH4HS (s) is not included in expression, so no
effect is observed
64. Gas van der Waals constant ‘a’
CH4
2.283
H2
0.2476
NH3
4.170
CO2
3.640
65. Larger is ‘a’, lesser is volume.
66.o
eqG 2.303 RT log K
o o
eqH T S 2.303 RT log K
o o
eq
H 1 SlogK
2.303R T 2.303R
oHSlope
2.303R
oSIntercept
2.303R
67.
4 4 2
2 2 4
CH CH SO
SO SO CH
4x
n n M 641616 2 32 : 1
xn n M 16
64
68. Suniverse
> 0 (For spontaneity)
69. Salt of strong acid and weak base will form acidic
solution of lowest pH.
70.W
PV RTM
WRT 0.6 0.0821 300M 29.6 g/mol
500PV1
1000
Test - 5 (Code-A) (Hints) All India Aakash Test Series for Medical-2018
5/6
71. Independent of size of surface.
72.1 1 2 2
n T n T
4 3.2T (T 125)
40 40
T = 500 K
73. pH of salt of weak acid and weak base depends
only on temperature, not on concentration
74. Rate increases with temperature.
75. Kw = 10–12 pH = 6, neutral maximum
dissociation occur.
76. Ksp
= 4s3 = 5.0 × 10–7
s3 = 1.25 × 10–7
= 125 × 10–9
s = 5 × 10–3
[OH–] = 2s = 2 × 5 × 10–3
pOH = 2
77. H°c
is only for one mole and complete combustion
78.2 4 3 2
NH COONH (s) 2NH (g) CO (g)�
At eq. 2p p
Kp = (2p)2(p)
32 = 4p3 p = 2
Total pressure, p = 2 × 2 + 2 = 6 atm
79. Due to greater hydration energy of F– ion.
80. If Keq
= 1, Go = 0
81.5 3 2
PCl (g) PCl (g) Cl (g)���⇀↽���
Mole at t = 0; 1 0 0
At equilbrium, 1 –
2
p
PK
1 1
⎛ ⎞ ⎜ ⎟⎝ ⎠
2
2
P
1
=
2
2
1P
2
11
2
⎛ ⎞⎜ ⎟⎝ ⎠
⎛ ⎞ ⎜ ⎟⎝ ⎠
=
P
4
3
4
p
PK
3
p
P 4K P P P
3 3
82. Fact
83. Gram equivalent of acid and base are equal so
resulting solution obtained is neutral.
84. ng = 0, K
p = K
c
1T 12.18 K
R , K
p = K
c
85.o o or f(product) (reactant)H H H
( 986.0 227) [ 62.0 2 ( 286)]
125.0 kJ/mol
H = E + ngRT
ng = 1
E = H – ngRT
= –125 –(+1) × 8.314 × 298 × 10–3
= –127.48 kJ/mol
86. HClO4 is strong acid.
87. No vibration and rotation is possible.
88. b
aT
Rb , c
8aT
27Rb , i
2aT
Rb
89. H – TS < 0
H 55 1000T 500 K
S 110
90. Salt of strong acid and strong base does not
hydrolyse.
BIOLOGY
91. The given characters refer bryophytes, they do not
have seeds (non-spermatophytes) and are non-
vascular (atracheophytes).
92. Vegetative and reproductive characters should not be
given equal weightage.
93. External and internal features like anatomy,
embryology and phytochemistry were also
considered in natural system.
95. Engler and Prantl’s system is phylogenetic. They
considered monocots primitive than dicots.
96. 2n = 20
PEC = 3n = 30
Polar nuclei (n) = 10
Coleorhiza (2n) = 20
Aleurone layer (3n) = 30
97. Brown algae do not possess (i) sulphated
phycocolloids (ii) apical flagella (iii) complex post-
fertilisation development.
98. Zygote does not undergo meiosis immediately in
bryophytes.
99. Brassicaceae
101. Red algae do not produce motile asexual spores like
green algae.
102. Female sex organ is non-jacketed in red algae.
105. Ovules are essential for seed formation.
All India Aakash Test Series for Medical-2018 Test - 5 (Code-A) (Hints)
6/6
106. Mycorrhizal roots are not found in all gymnosperms.
107. Bryophytes
108. Epigynous flowers are developed in coriander,
apples, cucumber, guava and sunflower.
109. Pollens in Pinus are shed at 4-celled stage.
110. All angiosperms do not have endosperm in seed.
111. Aloe is a member of Liliaceae.
112. Fruit formation occurs in angiosperms only.
114. Ectocarpus, Polysiphonia have haplo-diplontic life
cycle.
115. Vegetative propagation and respiration are not main
functions of root system.
116. Water is absorbed also from elongation zone in a
root.
117. Hygroscopic root is for moisture absorption.
118. Cladophyll and phylloclade are same.
120. Grasses and strawberry do not store food.
122. Siliqua – Mustard
Capsule – Poppy
125. Wheat, Lupin, Cassia and Canna have zygomorphic
flower.
127. Dianthus - Free central placentation.
129. Drupe is one seeded with hard endocarp.
130. Aggregate fruit develops from one flower consisting
many apocarpous ovary.
131. Banana – Mesocarp and endocarp.
132. Ploidy level of perisperm is 2n.
133. Placentation is represented in floral diagram.
135. Fabaceae : Trifolium, lupin, groundnut, Indigofera,
Sweet pea.
Solanaceae : Bellandona, Petunia, Ashwagandha.
Liliaceae : Colchicum, Gloriosa, Tulip.
136. All members of kingdom animalia do not have tissue.
137. Epithelial tissue has
– Little intercellular matrix.
– Does not cover all part of body.
139. Compound epithelium has limited role in secretion
and absorption.
140. Exocrine gland never secretes hormone. Hormones
are secreted by endocrine cells or glands.
Desmosomes cement neighbouring cells together.
141. Salivary gland – Epithelial tissue
Thymus – Epithelial tissue
Pancreas – Epithelial tissue
Liver – Epithelial tissue
142. Adipose tissue is loose connective tissue.
144. In heart, kidney and capillaries cartilage is absent.
145. Nervous tissue includes – Neurons and neuroglial
cells and as oligodendrocytes, astrocytes and
microglial cells.
146. Pronotum is tergum of thorax.
149. Compound eye, mandible, salivary glands, anal cerci,
alary muscles are paired structures and found in both
male and female cockroach.
150. Crop is followed by gizzard.
Gizzard is present between crop and mesenteron.
Gizzard is also known as proventriculus.
154. Testes, vas deferens, caudal styles are structures in
the list that are paired and found only in male
cockroach.
157. Anal cerci in cockroach are attached to abdominal
segment.
162. Synthesis of lactic acid from glucose is an example
of catabolic pathway.
163. An enzyme is functional in its tertiary structure.
Tertiary structure is attained after acquiring primary
and secondary structures.
165. If the product is at high energy level than substrate,
the reaction is endothermic.
170. It is a tyrosine amino acid which is not an essential
amino acids.
171. Serine – S
Cysteine – C
Tyrosine – Y
Glutamic acid – E
172. Chitin is a structural polysaccharide.
175. Adenosine – 5’ - Triphosphate, phosphate is
attached to 5th carbon of pentose (Ribose) or sugar.
176. Pyrimidine connected to sugar with N-1 while purine
connected to sugar with N-9
177. Bone - vascular
Cartilage - Avascular
178. (a) Areolar tissue
(b) Dense regular
(c) Dense irregular
So all three are connetive tissue, which are vascular,
have collagen fibres, Fibroblast, and all three are
mesodermal in origin.
179. Protein – 10-15% of the total cellular mass.
Nucleic acid – 5-7% of the total cellular mass.
Carbohydrates – 3% of the total cellular mass.
Lipid – 2% of the total cellular mass.
� � �
Test - 5 (Code-B) (Answers) All India Aakash Test Series for Medical-2018
1/6
1 (3)
2 (1)
3 (3)
4 (2)
5 (2)
6 (2)
7 (1)
8 (1)
9 (4)
10 (3)
11 (1)
12 (3)
13 (1)
14 (1)
15 (1)
16 (2)
17 (2)
18 (2)
19 (4)
20 (1)
21 (2)
22 (1)
23 (1)
24 (2)
25 (2)
26 (1)
27 (2)
28 (4)
29 (4)
30 (1)
31 (3)
32 (1)
33 (3)
34 (2)
35 (1)
36 (4)
Test Date : 17/12/2017
ANSWERS
TEST - 5 (Code B)
All India Aakash Test Series for Medical - 2018
37 (1)
38 (2)
39 (2)
40 (2)
41 (1)
42 (4)
43 (3)
44 (3)
45 (4)
46 (4)
47 (2)
48 (2)
49 (4)
50 (2)
51 (4)
52 (4)
53 (1)
54 (4)
55 (4)
56 (4)
57 (2)
58 (4)
59 (4)
60 (4)
61 (2)
62 (3)
63 (4)
64 (1)
65 (4)
66 (4)
67 (2)
68 (2)
69 (1)
70 (1)
71 (3)
72 (3)
73 (4)
74 (3)
75 (2)
76 (4)
77 (1)
78 (3)
79 (3)
80 (2)
81 (3)
82 (2)
83 (1)
84 (4)
85 (2)
86 (4)
87 (2)
88 (3)
89 (2)
90 (2)
91 (1)
92 (2)
93 (3)
94 (1)
95 (1)
96 (3)
97 (2)
98 (2)
99 (4)
100 (2)
101 (2)
102 (1)
103(Deleted)
104 (2)
105 (2)
106 (1)
107 (2)
108 (2)
109 (4)
110 (3)
111 (4)
112 (2)
113 (1)
114 (3)
115 (4)
116 (3)
117 (3)
118 (3)
119 (2)
120 (3)
121 (3)
122 (3)
123 (1)
124 (4)
125 (1)
126(Deleted)
127 (3)
128 (2)
129 (1)
130 (4)
131 (4)
132 (3)
133 (2)
134 (2)
135 (4)
136 (3)
137 (3)
138 (2)
139 (2)
140 (2)
141 (4)
142 (3)
143 (3)
144 (4)
145 (3)
146 (2)
147 (1)
148 (4)
149 (2)
150 (4)
151 (3)
152 (2)
153 (4)
154 (4)
155 (1)
156 (3)
157 (1)
158 (3)
159 (4)
160 (2)
161 (2)
162 (2)
163 (2)
164 (4)
165 (3)
166 (2)
167 (2)
168 (3)
169 (2)
170 (4)
171 (4)
172 (4)
173 (3)
174 (4)
175 (2)
176 (1)
177 (3)
178 (3)
179 (2)
180 (1)
All India Aakash Test Series for Medical-2018 Test - 5 (Code-B) (Hints)
2/6
PHYSICS
2. 2tane
3.2
cos3
5. cm
xdm
x
dm
∫∫
6. L r P � �
�
7. In Hz. dir. Xcm
= 0
30°
M
m
l
X
cos30l mX
m M
8. a r � ��
9.0
2
21
vV
k
R
⎛ ⎞⎜ ⎟
⎜ ⎟⎝ ⎠
10.2
2
tan
1R
k
⎛ ⎞⎜ ⎟
⎜ ⎟⎝ ⎠
13.
X
X
2L
2 2X L
2 212 sin 45
3I MX
⎛ ⎞ ⎜ ⎟⎝ ⎠
15.
2
2
2
21
h kF
R Rf
k
R
⎛ ⎞⎜ ⎟
⎜ ⎟⎝ ⎠
16.
2
cos2
gtL mu
2L t
21.
2
3
R
5
3
R
3
R
R
F
2
52
2 3 3
F R RR Mg
⎛ ⎞ ⎜ ⎟⎝ ⎠
23.2td
edt
,2
2td
edt
2 2 2( ) ( )a r r
25.
f
vt
f cos
( cos )w f vt
sinf mg
26.21
0 (2 )2mv d R
210 (2 ) ( )
2m v nd R
27. 0dU
dx at x = 2
2
20
d U
dx
28. 1/3v x
29.5 ˆ ˆ ˆ ˆ( )( )2
w i j i j
w = 0
30.2
m/s3 3
mg ga
m
3
mgw d
⎛ ⎞ ⎜ ⎟⎝ ⎠
HINTS
Test - 5 (Code-B) (Hints) All India Aakash Test Series for Medical-2018
3/6
31.
60º
60º
2 sin60ºmuF
t
32.
22
2Va g
R
⎛ ⎞ ⎜ ⎟
⎜ ⎟⎝ ⎠
34.100 N
M
50 N
2502.5 m/s
20a
Acceleration of pulley = 2
a
36. cosN mg
tan 2dy
xdx
x = 2, tan = 4
37.
M1
M2
1R
2
2R2
T
T
ff
2
1T f M R
2
2T f M R
1f M g
38.dv
gdt
4t g
39. cosLf mg
40.1 1 2 2
cm 1 2
1 2
ˆ( )m a m a
a a a gjm m
� �
� � �
41.21
60 (4) (3)(4)2
0 3( ) 3 st t ⇒
43. friction
3 310 (250)10 750 J
10 10W Mg
⎛ ⎞ ⎜ ⎟⎝ ⎠
44. For man, N + T = Mg
For box, T = N
2
MgN
45. 0F P � �
F�
should be normal to P�
.
CHEMISTRY
46. Salt of strong acid and strong base does not
hydrolyse.
47. H – TS < 0
H 55 1000T 500 K
S 110
48. b
aT
Rb , c
8aT
27Rb , i
2aT
Rb
49. No vibration and rotation is possible.
50. HClO4 is strong acid.
51.o o or f(product) (reactant)H H H
( 986.0 227) [ 62.0 2 ( 286)]
125.0 kJ/mol
H = E + ngRT
ng = 1
E = H – ngRT
= –125 –(+1) × 8.314 × 298 × 10–3
= –127.48 kJ/mol
52. ng = 0, K
p = K
c
1T 12.18 K
R , K
p = K
c
53. Gram equivalent of acid and base are equal so
resulting solution obtained is neutral.
54. Fact
55.5 3 2
PCl (g) PCl (g) Cl (g)���⇀↽���
Mole at t = 0; 1 0 0
At equilbrium, 1 –
2
p
PK
1 1
⎛ ⎞ ⎜ ⎟⎝ ⎠
2
2
P
1
=
2
2
1P
2
11
2
⎛ ⎞⎜ ⎟⎝ ⎠
⎛ ⎞ ⎜ ⎟⎝ ⎠
=
P
4
3
4
p
PK
3
p
P 4K P P P
3 3
56. If Keq
= 1, Go = 0
All India Aakash Test Series for Medical-2018 Test - 5 (Code-B) (Hints)
4/6
57. Due to greater hydration energy of F– ion.
58.2 4 3 2
NH COONH (s) 2NH (g) CO (g)�
At eq. 2p p
Kp = (2p)2(p)
32 = 4p3 p = 2
Total pressure, p = 2 × 2 + 2 = 6 atm
59. H°c
is only for one mole and complete combustion
60. Ksp
= 4s3 = 5.0 × 10–7
s3 = 1.25 × 10–7
= 125 × 10–9
s = 5 × 10–3
[OH–] = 2s = 2 × 5 × 10–3
pOH = 2
61. Kw = 10–12 pH = 6, neutral maximum
dissociation occur.
62. Rate increases with temperature.
63. pH of salt of weak acid and weak base depends
only on temperature, not on concentration
64.1 1 2 2
n T n T
4 3.2T (T 125)
40 40
T = 500 K
65. Independent of size of surface.
66.W
PV RTM
WRT 0.6 0.0821 300M 29.6 g/mol
500PV1
1000
67. Salt of strong acid and weak base will form acidic
solution of lowest pH.
68. Suniverse
> 0 (For spontaneity)
69.
4 4 2
2 2 4
CH CH SO
SO SO CH
4x
n n M 641616 2 32 : 1
xn n M 16
64
70. G° = – 2.303 RT lgo Keq
H° – TS° = – 2.303 RT log Keq
o o
eq
H 1 SlogK
2.303R T 2.303R
oHSlope
2.303R
oSIntercept
2.303R
71. Larger is ‘a’, lesser is volume.
72. Gas van der Waals constant ‘a’
CH4
2.283
H2
0.2476
NH3
4.170
CO2
3.640
73.3 2NH H S
p
(p )(p )K
1
NH4HS (s) is not included in expression, so no
effect is observed
74. (i) T1 < T
2 < T
3 (correct)
(ii) T3 < T
2 < T
1 (correct)
(iii)K
PV
logP logV logK
y ( 1)x c
75.f
eqb
K 3xK 3
K x
76. Average velocity = (2 2.0) (4 3.0) (3 4.0)
2 4 3
= 28
9
Most probable velocity = 3
Ratio = 28 / 9 28
3 27
77. On mixing equal volumes of acidic solutions
–3
0.01 0.001H 5.5 10
2
⎡ ⎤ ⎣ ⎦
pH = –log(5.5 × 10–3) = 2.26
78. pH is an intensive property.
79. CH COOH + NaOH 3
CH COONa + H O3 2
Initially
After reaction
0.2 × 250
50 – 20
0.1 × 200
20 – 20
×
20
×
= 50
= 30
= 20
= 0
milli moles
milli moles
20
Finally solution contains weak acid and its salt with
strong base, so it is a case of acidic buffer.
pH = a
[Salt]pK log
[Acid]
= 20
4.74 log30
⎡ ⎤ ⎢ ⎥⎣ ⎦
= 4.74 + log 2 – log 3
= 4.74 + 0.30 – 0.48
= 4.56
Test - 5 (Code-B) (Hints) All India Aakash Test Series for Medical-2018
5/6
80. 6 5 2 2 2
15C H COOH(s) O (g) 7CO (g) 3H O(l)
2
g
15 1n 7
2 2
gH E n RT
RTx E
2
RTE x
2
32 300 10
x2
= –x + 0.3
81. n – nc
p c
p
KK K RT RT
K
⇒
c2 2
p
K1. N O 2NO, n 0 1
K ���⇀
↽���
2c2 2 3
p
K2. N 3H 2NH , n –2 RT
K ���⇀
↽���
–1c5 3 2
p
K3. PCl PCl Cl , n 1 RT
K ���⇀
↽���
c2 2
p
K4. 2HI H l , n 0 1
K ���⇀
↽���
82.KOH K OH
0.1 M 0.1 M
3
3Al(OH) Al 3OH
s (3s 0.1)
���⇀↽���
Ksp
= [Al+3] [OH–]3
= (s) (3s + 0.1)3 3s + 0.1 0.1 only
1.9 × 10–33 = s × (0.1)3
s = 1.9 × 10–30 M
83. 2
aP V b RT
V
⎛ ⎞ ⎜ ⎟⎝ ⎠
At low P, V is large
V b V
2
aP V RT
V
⎛ ⎞ ⎜ ⎟⎝ ⎠
a
PV RTV
aPV RT
V
84. On adding HCl gas, NH3 will react with it, so
equilibrium is shifted in forward direction.
85. Mixture of weak acid and its salt with strong base
is an acidic buffer.
86. Hf
o is calculated from elements only.
87. –4
a
1 1pH pK – logc – log 4 10 – log 0.05
2 2⎡ ⎤ ⎡ ⎤⎣ ⎦ ⎣ ⎦
14 – log4 – log0.05
2
= 2.35
88. Lighter gas will effuse faster from orifice, so its mole
fraction will be least in remaining gas and partial
pressure will also be lowest.
89. Fact
90.
1– 2 2
2 2
1 0 0
2HI H I
���⇀↽��� ; = 0.5
c 2 2
1 1 1 1
12 2 4 4 4 4K 0.25
1 411–1–
42
⎛ ⎞ ⎛ ⎞⎜ ⎟⎜ ⎟ ⎝ ⎠⎝ ⎠
BIOLOGY
91. Fabaceae : Trifolium, lupin, groundnut, Indigofera,
Sweet pea.
Solanaceae : Bellandona, Petunia, Ashwagandha.
Liliaceae : Colchicum, Gloriosa, Tulip.
93. Placentation is represented in floral diagram.
94. Ploidy level of perisperm is 2n.
95. Banana – Mesocarp and endocarp.
96. Aggregate fruit develops from one flower consisting
many apocarpous ovary.
97. Drupe is one seeded with hard endocarp.
99. Dianthus - Free central placentation.
101. Wheat, Lupin, Cassia and Canna have zygomorphic
flower.
104. Siliqua – Mustard
Capsule – Poppy
106. Grasses and strawberry do not store food.
108. Cladophyll and phylloclade are same.
109. Hygroscopic root is for moisture absorption.
110. Water is absorbed also from elongation zone in a
root.
111. Vegetative propagation and respiration are not main
functions of root system.
112. Ectocarpus, Polysiphonia have haplo-diplontic life
cycle.
114. Fruit formation occurs in angiosperms only.
115. Aloe is a member of Liliaceae.
116. All angiosperms do not have endosperm in seed.
All India Aakash Test Series for Medical-2018 Test - 5 (Code-B) (Hints)
6/6
117. Pollens in Pinus are shed at 4-celled stage.
118. Epigynous flowers are developed in coriander,
apples, cucumber, guava and sunflower.
119. Bryophytes
120. Mycorrhizal roots are not found in all gymnosperms.
121. Ovules are essential for seed formation.
124. Female sex organ is non-jacketed in red algae.
125. Red algae do not produce motile asexual spores like
green algae.
127. Brassicaceae
128. Zygote does not undergo meiosis immediately in
bryophytes.
129. Brown algae do not possess (i) sulphated
phycocolloids (ii) apical flagella (iii) complex post-
fertilisation development.
130. 2n = 20
PEC = 3n = 30
Polar nuclei (n) = 10
Coleorhiza (2n) = 20
Aleurone layer (3n) = 30
131. Engler and Prantl’s system is phylogenetic. They
considered monocots primitive than dicots.
133. External and internal features like anatomy,
embryology and phytochemistry were also
considered in natural system.
134. Vegetative and reproductive characters should not be
given equal weightage.
135. The given characters refer bryophytes, they do not
have seeds (non-spermatophytes) and are non-
vascular (atracheophytes).
137. Protein – 10-15% of the total cellular mass.
Nucleic acid – 5-7% of the total cellular mass.
Carbohydrates – 3% of the total cellular mass.
Lipid – 2% of the total cellular mass.
138. (a) Areolar tissue
(b) Dense regular
(c) Dense irregular
So all three are connetive tissue, which are vascular,
have collagen fibres, Fibroblast, and all three are
mesodermal in origin.
139. Bone - vascular
Cartilage - Avascular
140. Pyrimidine connected to sugar with N-1 while purine
connected to sugar with N-9
141. Adenosine – 5’ - Triphosphate, phosphate is
attached to 5th carbon of pentose (Ribose) or sugar.
144. Chitin is a structural polysaccharide.
145. Serine – S
Cysteine – C
Tyrosine – Y
Glutamic acid – E
146. It is a tyrosine amino acid which is not an essential
amino acids.
151. If the product is at high energy level than substrate,
the reaction is endothermic.
153. An enzyme is functional in its tertiary structure.
Tertiary structure is attained after acquiring primary
and secondary structures.
154. Synthesis of lactic acid from glucose is an example
of catabolic pathway.
159. Anal cerci in cockroach are attached to abdominal
segment.
162. Testes, vas deferens, caudal styles are structures in
the list that are paired and found only in male
cockroach.
166. Crop is followed by gizzard.
Gizzard is present between crop and mesenteron.
Gizzard is also known as proventriculus.
167. Compound eye, mandible, salivary glands, anal cerci,
alary muscles are paired structures and found in both
male and female cockroach.
170. Pronotum is tergum of thorax.
171. Nervous tissue includes – Neurons and neuroglial
cells and as oligodendrocytes, astrocytes and
microglial cells.
172. In heart, kidney and capillaries cartilage is absent.
174. Adipose tissue is loose connective tissue.
175. Salivary gland – Epithelial tissue
Thymus – Epithelial tissue
Pancreas – Epithelial tissue
Liver – Epithelial tissue
176. Exocrine gland never secretes hormone. Hormones
are secreted by endocrine cells or glands.
Desmosomes cement neighbouring cells together.
177. Compound epithelium has limited role in secretion
and absorption.
179. Epithelial tissue has
– Little intercellular matrix.
– Does not cover all part of body.
180. All members of kingdom animalia do not have tissue.
� � �
