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ETEA Test ETEA-Solved-Papers-2010-2017.Pdf
Sample Question from PDF File.
1. ―The compound that cannot undergo addition reaction is:
(a) Cycloproane
(b) Benzene
(c) Butyne
(d) None of the above
2.Benzene gives more stable product when undergo:
(a) Nucleophilic addition reaction
(b) Oxidation reaction
(c) Electrophilic substitution reaction
(d) Electrophilic addition reaction
3.
For callus formation, auxin and cytokinin are required
in which ratio?
(a) Balanced
(b) Only cytokinin required
(c) Low auxin, very high cytokinin
(d) Only auxin
4.
For which purpose myeloma cells (cancerous
B.lymphocytes) are used in the production of
monoclonal antibodies?
(a) Increased rate of cell division
(b) Immunization with antigen
(c) To avoid
contamination
(d) As nutrient in media
5. DNA polymer ase adds nucleotide .to the 3‘ end of the primer so the direction of replication will be?
(a) 5 3 to
(b) 3 5 to
(c) 3 end of the primer to 3 end of template strand
(d) 3 end of template strand to the 3 end of the primer
6. The range of projectile is the same for two angles which are mutually;
(a) Perpendicular
(b) Supplementary
(c) Complementary
(d) 270
7. A wave of amplitude 20 mm has intensity I x another wave of the same frequency but of amplitude 5 mm has intensity I y , what is I x
/ I y ?
(a) 2
(b) 4
(c) 16
(d) 256
8. The resistance of a device is designed to change with temperature. What is device?
(a) A light-dependent resistor
(b) A potential divider
(c) A semicon ductor diode
(d) A the rmistor
9. I enjoy ______________ tennis.
(a)to play
(b) plays
(c) playing
(d) to playin were able to walkthrough the path.
Choose the correct sentence.
(a) Naila was so exhausted that she lain down for a
nap.
(b) Naila was so exhausted that she liad down for a nap.
(c) Naila was so exhausted that she was lying do wn for
a nap.
(d) Naila was so exhausted that she will lay do wn for a nap.
21.
The bond energy of a H 2 molecule
is:
(a)
436
Kj/mol
(b)
40.7
Kj/mol
(c)
272
Kj/mol
(d)
436
Avogaros no Kj/mol
22. Considering the molecule, orbital theory (MOT)
choose the correct relative energies order.
23. The oxidation of pent -2-one (2-pentanone) with nascent oxygen gives:
(a) Propanal
(b) Propanoic acid
(c)Ethanoic acid
(d) Pentanoic acid
24.
If medulla oblongata of a person brain is damaged
which of the following processes will be disturbed?
(a)
Thinking
(b)
Sleep
(c)
Thirst
(d)
Swallowing
25.
Otitis media is an inflammation of which part of the
body?
(a)
Brain
(b)
Middle
ear
(c)
Lungs
(d)
Urinary
tract
26.
In which of the following disorder the structure and
function of normal spinal cord is damaged?
(a)
Arthritis
(b)
Sciatica
(c)
Spondyiosis
(d)
27.
A stationary nucleus has nucleon number A. The
nucleus decays by emitting a proton with speed
v
to
form a new nucleus with speed u. The new nucleus
and the proton move away from one another in
opposite direction. Which equation gives
v
in terms of
A
and
u
?
(a) v = (
A
/ 4
–
1)
u
(b) v = (
A
–
1)
u
(c) v =
A
u
(d) v = (
A +
1)
u
28.
a person, travelling on a motorway a total distance of
200 km, travles the first 90 km at an average speed of
80 km h
-1
. Which average speed must be obtained for
the rest of the journey if the person is to reach the
destination in a total time of 2 hours 0
minutes?
(a) 110 km h
-1
(b)
122 km h
-1
(c) 122 km h
-1
(d) 126 km h
-1
29.
An object of mass ―m‖ travelling with speed ―v‖ has a
head-on collision with a
nother object of mass ―m‖
travelling with speed ―v‖ in the opposite direction. The
two objects stick together after the collision. What is
the total loss of kinetic energy in the collision.
(a)
0
(b)
2
1
2
mv
(c)
2
mv
(d)
2
2
mv
30.
He asked me what my name was and what I did.
(a)
He said to me, ―What was my name and what did I
do?‖
(b)
He said to me, ―What is your name and what do
you do?‖
(c)
He said to me, ―What my name was and what
I
do?‖
(d)
He said to me, ―What his name was and what did
he do?‖
31.
Four beakers containing ethanal, ethanol, propanane
and phenol separately. Aqueous bromine was added to
each beaker. A white ppt was produced in one beaker.
This beaker contain:
(a)
Ethanol (b)
Phenol (c)
Ethanals
(d)
propanone
32.
To differentiate between the white ppt of
AgCl
and
off-white ppt of
AgBr
we use:
(a) Dil. Solution of
NaOH
(b) Dil
.
Solution of
Pb(NO
3
)
3
(c) Dil. Solution of
NH
3
(d) Dil. Sulution of
FeCl
3
33.
3
2
2
2
5
2
2
||
Pr
C
H
C
H
N
H
C
H
C
H
o
d
u
c
t
C
(a)
Sheft‘s base
(b)
Diazonium
sait
(c)
Amide
(d)
Imine
+
Amide
34.
If the primer annealing temperature is increased to
94
. What will happen?
(a)
Annealing
(b)
Extension
(c)
No
annealing
(d)
Primer-dimer
formation
35.
Choose acids that are showing leveling effect.
i)
Hcl
ii)
Hl
iii)
HCl
iv)
HF
(a)
i
&
iv
(b)
i,
iii
&
iv
(c)
iii
&
iv
(d)
i,
ii,
&
iii
3
36.
The experiments by Hershey and Chase helped
confirm that DNA was the hereditary material on the
basis of the finding that:
(a) Radioactive phage were found in
the pellet
(b) Radioactive phage were found in
the supernatant
(c) Radioactive sulfur was found inside the cell
(d) Radioactive phosphorus was found in the cell
37.
How many nucleotides are 12 mRNA codons?
(a)
12
(b)
24
(c)
36
(d)
48
38.
Which of the following is a suitable vector to be
incorporated with a large external DNA fragment?
(a) Small size vector
(b) Large size vector
(c) Large size vector with no srcin of replication
(d) Small size vector with no srcin of replicatio
n
39.
A value for the acceleration of free fall on Earth is
given as (10
2) m s
-2
. Which statement is correct?
(a) The value is accurate but not precise.
(b) The value is both precise and accurate.
(c) The value is nether precise nor accurate.
(d) The value is precise but not accurate.
40.
Which experimental technique reduces the systematic
error of the quantity being investigated?
(a) Adjust an ammeter to remove its zero error before
measuring a current
(b) Measuring several internodal distances on a
standing wave to find the mean internodal
distance
(c) Measuring the diameter of a wire repeatedly and
calculating the average
(d) Timing a large number of oscillations to find
a
period
41.
A metal sphere of radius r is dropped into a tank of
water. As it sinks at speed v, it experiences a drag
force F given by F = k r v, where k is a constant. What
are the S.I base units of k?
(a) Kg m
2
s
-1
(b) Kg m
2
s
-2
(c) Kg m
1
s
-1
(d)
Kg
m
s
-2
42.
Choose the correct sentence.
(a) How long are you wearing glasses?
(b) How long do you wear glasses?
(c) How long are you wear glasses?
(d) How long have you been wearing glasses?
43.
A Carnot engine working between 200 k and 400 k
has
work output of 600 J are cycle. How much heat energy
is supplied to the engine from the source in each cycle.
(a)
1400
J
(b)
1200
J
(c)
1700
J
(d)
1300
J
44.
What happens when charge is placed on a soap
bubble?
(a)
It
collapse
(b)
Its
radius
increases
(c) Its radius de
creases
(d) None of
the above
45.
Choose
the antonym for the word ―ABROGATE‖
(a)
Transgress
(b)
Signify
(c)
Allevate
(d)
Ratify
46.
Which ion is stable in aqueous solution?
(a) Sc
3+
(b) Li
2+
(c)
Ba
3+
(d) Na
–
47.
Colloidal particles can be separated by using:
(a) Ordinary filter paper
(b) Coarse filter paper
(c)
Fine
filter
paper
(d) Extremely fine filter paper
48.
Consider the following reaction
3
(
)
(
)
2
(
)
(
) 2
(
5
)
2
6
2 6
a
q
a
q
a
q
a
q
FeCl
kl
Fel
KCl
l
Rate =
3
2
3
K
FeCl
Kl
choose the correct
molecularly and order of the
reaction respectively
(a)
2
and
2
(b)
6
and
2
(c)
8
and
3
(d)
8
and
2
49.
Which of the following nutrient is incorrectly paired
with its function in plant?
(a) Iron
–
cytochromes and chlorophyll synthesis
(b) Molybdenum
–
ell permeability
(c) Cobalt
–
required by nitrogen fixers
(d) Calcium
–
formation of cell wall
50.
Which cells are responsible for the movement of sugar
as per mass flow hypothesis?
(a) Tracheids, vessel elements
(b) Tracheids, companion cells
(c) Vessel elements, companion cells
(d) Companion cell, sieve-tubes
51.
After buying green bananas or unripe avocadoes, they
can be kept in a brown bag to ripen. The hormone
reieased by the fruit and trapped in the bag is probably:
(a)
Abscisic
acid
(b)
Cytokinin
(c)
Ethylene
(d)
Gibberellic
acid
52.
For the location/detection of a gene in a DNA library
which of the following is used?
(a)
Primer
(b)
Probe
(c) Restrictionn
enzyme
(d) Taq
polymerase
53.
Under UV illumination, DNA bands are seen in
agarose due to which of the following ?
(a)
Agarose
(b)
Charge
of
DNA
(c)
Fluorescent
dye
(d)
Radioactive
dye
4
54.
When a car travelling with constant velocity passes a
stationary observer, the observer hears a change in the
frequency of the sound emmited by the car .Which is
statement is correct?
(a) The cange in frequency is greater as the car moves
away than as it approaches.
(b) The greater the speed of the car, the greater the
change in observed frequency.
(c) The observed frequency is lower as the car moves
towards the observer and higher as the car moves
away from the observed.
(d) The volume of the sound heard by the oberved
does not changes as the car approcahes.
55.
A parachutist is falling constant (terminal) velocity.
Which statement is not correct?
(a) Gravitational potential energy is converted into
kinetic energy of the air.
(b) Gravitational potential energy is converted into
kinetic energy of the parachutist.
(c) Gravitational potential energy is converted into
thermal energy of the air.
(d) Gravitational potential energy is converted into
thermal energy of the parachutist.
56.
The time period of a simple pendulum is 2 seconds. If
its length is increased by 4 times , then its period
becomes :
(a)
16
s
(b)
12
s
(c)
8
s
(d)
4
s
57.
Choose the correct sentence.
(a) The village folk were present.
(b) The village folk was present.
(c) The village folks were present.
(d) The village folks was present.
58.
The number of chiral centres in a molecule of 5-bromo
3-chloro hexan-2-Ol is /are:
(a)
1
(b)
3
(c)
2
(d)
5
59.
Which group when attached to benzene will increase
its reactivity :
(a)
NHR
(b)
3
NH
(c)
C
N
(d)
CO
R
60.
The compound which is purely acidic is:
(a)
2
Mg
OH
(b)
3
Al
OH
(c)
4
Si
O
H
(d)
None
of
the
above
61.
Which of the following is a non-sense codon?
(a)
UGA
(b)
UAU
(c)
CAU
(d)
GAU
62.
If a disorder is
not present
in a
child family
but the
fetus itself is infected before birth,it is known as?
(a)
Somatic
mutation
(b) H
ereditary
mutation
(c) Germ line
mutation
(d) De novo
mutation
63.
What will happen if a nucleotide is deleted from a
gene having 9 nucleotides in its transcriptional unit?
(a) Change in ph
enotype
(b) No change
in phenotype
(c) Synthesis of 3 amino acids
(d) Synthesis of 4 amino acids
64.
Work function for a certain surface is 3.26 eV.
Minimum frequency , light must have in order to eject
electron from surface will be:
(a)
15
1
.6
1
0
H
z
(b)
15
3
.2
1
0
H
z
(c)
15
4
.8
1
0
H
z
(d)
14
7.
87
10
H
z
65.
The
unit of planck‘s c
onstant is the same as
that
of:
(a) Angular momentum (b) Work
(c)
Force
(d)
Torque
66.
A radioactive substace has a half-life of 60 minutes.
During 3 hours , the percentage of the material that
decayed would be:
(a)
12.5%
(b)
87.5%
(c)
8.5%
(d)
25.1%
67.
While the city has earned record revenue this year,
__________ well behind in exports.
(a)
it
still
lag
(b)
it
still
lags
(c)
it
lag
still
(d)
it
lags
still
68.
The compound which can be hydrolyzed by means of
water is:
(a) CCl
4
(b)
SiCl
4
(c) CH
4
(d) None of the above
69.
Choose the correct statement about cycloalkanes:
(a) Cyclopropane and cyclobutane are liquids at
room
temperature
(b) Cycloalkanes are insoluble in ethanol and ether but
soluble in water
(c) Their melting and boiling points show a gradual
increase with increase in no of corbon.
(d) Both (b) & (c) are correct
70.
Which one is a strong nucleophile:
(a)
(b)
(c)
̈
(d)
71.
Choose the correct arrangement of the various regions
of the electromagnetic spectrum in terms of wave
lengths.
(a)
IR > un > visible > microwave > radio frequency
(b)
Microwave IR > uv > visible > > radio frequency
(c)
Radio frequency > microwave > IR > visible > uv
(d)
Visible > IR > uv > microwave > radiowave
72.
If one of the following component is missing bacteria
can not increase the number of its plasmid copies?
(a) Antibiotic resistant gene (b) Origin of replication
(c)
Cloning
site
(d)
Ligases
enzyme
—
