Entrance Test For Biotechnology Page 20
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23127.
R aman
s cattering
i s
a ssociated
w ith
a) an
i ncrease
i n
t he
w avelength
b) a
d ecrease
i n
t he
w avelength
c) both
A
a nd
B
d) no
c hange
i n
t he
w avelength
128.
T wo
p rotons
m ove
p arallel
t o
e ach
o ther,
k eeping
d istance
r
b etween
t hem,
b oth
m oving
w ith
s ame
v elocity
v.
T hen
t he
r atio
o f
t he
e lectric
a nd
m agnetic
f orce
o f
è
i nteraction
b etween
t hem
i s
a) c
/v
2
2
b) 2c
/v
2
2
c) c
/2v
2
2
d) c
/4v
2
2
129.
W hen
t he
p H
o f
a
s olution
i s
2 ,
t he
h ydrogen
i on
c oncentration
i n
m oles
p er
l itre
i s
a) 1
x
1 0
-‐14
b) 1
x
1 0
-‐12
c) 1
x
1 0
-‐7
d) 1
x
1 0
-‐2
130.
W hat
i s
t he
e ffect
o f
a dding
s odium
a cetate
c rystals
t o
o ne
l iter
o f
0 .5
M
a cetic
a cid
s olution?
a) Decrease
i n
t he
s odium
i on
c oncentration
b) Decrease
i n
t he
H ydrogen
i on
c oncentration
c) Increase
i n
t he
h ydrogen
i on
c oncentration
d) Decrease
i n
t he
s odium
i on
a s
w ell
a s
h ydrogen
i on
c oncentration
131.
T he
h eat
e volved
i n
c ombustion
o f
b enzene
i s
g iven
b y
t he
f ollowing
e quation
C
H
+
7
½
O
3H
O
+
6 CO
;
d elta
H =
-‐ 3264.6
k j
p er
m ole.
6
6
2
2
2
How
m uch
h eat
e nergy
w ill
b e
e volved
w hen
3 9
g
C
H
a re
b urnt
i n
a n
o pen
6
6
container?
a) 816.15
k j
p er
m ole
b) 1632.3
k j
p er
m ole
c) 6528.2
k j
p er
m ole
d) 2448.45
k j
p er
m ole
132. Circular
d ichroism
c an
h elp
t o
d etect
t he
f ollowing:
a) Change
i n
h andedness
b) Change
i n
m ass
c) Change
i n
c olor
d) Change
i n
v iscosity
133.
F lux
i s
a mount
o f
m aterial
p assing
t hrough
a n
u nit
a) area
p er
u nit
t ime.
b) volume
p er
u nit
t ime.
c) volume
d) area
20
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