Entrance Test For Biotechnology Page 6
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2323.
A
c ar
i s
m oving
i n
a
c ircular
h orizontal
t rack
o f
r adius
1 0
m
w ith
a
c onstant
s peed
o f
1 0
m /s.
A
p lumb
b ob
i s
s uspended
f rom
t he
r oof
o f
t he
c ar
b y
a
l ight
r igid
r od.
T he
a ngle
m ade
b y
t he
r od
w ith
t he
v ertical
i s
( take
g =10m/s
)
2
a) Zero
b) 30
o
c) 45
o
d) 60
o
24.
W hich
o ne
o f
t he
f ollowing
m etals
i s
p resent
i n
c hlorophyll?
a) Mg
b) Be
c) Ca
d) Cu
25.
Z inc
d oes
n ot
s how
v ariable
v alency
l ike
d -‐block
e lements
b ecause
a) It
i s
a
s oft
m etal
b) It
h as
l ower
m elting
t emperature
c) Two
e lectrons
a re
p resent
i n
t he
o utermost
o rbit
d) d-‐orbital
i s
c omplete
26.
B asicity
o f
o rthophosphoric
( H
PO
)
a cid
i s
3
4
a) 2
b) 3
c) 4
d) 5
27.
A
m aximum
_ _____
n umber
o f
e lectrons
c an
b e
a ccommodated
i n
t he
p -‐orbitals.
a) 3
b) 4
c) 6
d) 8
28.
A ccording
t o
t he
P auli
e xclusion
p rinciple,
e ach
o rbital
i n
a n
a tom
c an
b e
o ccupied
b y
a) two
e lectrons
b) four
e lectrons
c) one
e lectron
a nd
o ne
p ositron
d) many
e lectrons
29.
W hich
o f
t he
f ollowing
i s
N OT
a
s tate
f unction
-‐
a) internal
e nergy
b) work
c) entropy
d) enthalpy
30.
T he
t emperature
a t
w hich
t he
v apour
p ressure
i s
e qual
t o
t he
a tmospheric
p ressure
i s
c alled
a) Critical
t emperature
b) Boiling
p oint
c) Melting
t emperature
d) Saturation
p oint
6
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