Hello CSIR UGC NET aspirants, This is the Model paper series for COMPULSORY paper – A from the CSIR syllabus – PAPER – I (Part A). This is useful for all aspirants. Check your ability with this model paper series. This is Model Paper -1.

csir ugc net Model paper series

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Compulsory Paper - Model Paper 1

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Question 1
If a certain place shows stable population distribution. It means maximum number of individual will be ...
A
Oldest
B
Youngest
C
Reproductively more active
D
Healthy
Question 2
What amount has to be taken from 11 N HCl to make 50 ml of 2N HCl
A
2.0 ml
B
11.0 ml
C
9.09 ml
D
6.03 ml
Question 3
The mean salinity of sea 35 g per liter. The main cause of this observed salinity is...
A
Evaporation and Rainfall
B
Reverse drainage
C
Crust erosion and surface runoff
D
Photosynthesis
Question 4
Salivary amylase acts most effectively in
A
A Neutral solution
B
An acidic solution
C
An Alkaline Solution
D
any state
Question 5
Parts per billion can be represented as ...  
A
μl/l
B
ng/Kg
C
μg/g
D
μg/Kg
Question 6
Temperature above which gas can not be liquified even by applying pressure is termed as ...
A
Critical temperature
B
Curie Temperature
C
Charles temperature
D
Boyle temperature
Question 7
Blue color of Sky is due to
A
Crompton scattering
B
Answer is not in the options
C
Scattering only
D
Due to consumption of sunlight
Question 8
Earth is active planet and have phenomenon like volcano, earthquake and continental drift. The major source of energy for continental drift is ..
A
Radioactivity in core of earth
B
Energy from sun
C
Earth gravity
D
Moon gravity
Question 9
The computer codes for decimal number 99 will be
A
011000111
B
1100011
C
1110111
D
1000011
Question 10
Core of the moon is
A
Plasma
B
Viscous liquid
C
Solid
D
Volatile gas
Question 10 Explanation: 
Core moon is solid like earth's core
Question 11
Which one is an egg laying mammal
A
Bat
B
Spiny ant eater
C
Scaly ant eater
D
Whale
Question 12
Which statement is not correct for all mammals
A
Absence of laying egg
B
Absence of segmentation
C
Absence of Scales
D
Presence of asexual reproduction
Question 13
Which of the following is responsible for ozone hole?
A
Methane (CH4)
B
Chlorine
C
Nitric Oxide (NO)
D
Carbon dioxide (CO2)
Question 14
The period of isolation for chicken pox is
A
not less than 2 weeks
B
at least one week
C
ten days after the appearance of rash
D
until all the scabs have fallen off
Question 15
Which of the following element is required for production of thyroxin?
A
NaCl
B
Iodine
C
Bromine
D
Flourine
Question 16
Zinc oxide is thermogenic, changing from white to yellow when heated to high temperature. This color change is caused due to
A
Burning of Oxygen
B
Fluorescence at high temperature
C
Stoichiometric property of metal
D
Non - Stoichiometric property of metal
Question 17
Among following which cell can be divided by binary fission...
A
Nerve cell
B
Muscle cell
C
Bone-marrow cell
D
RBC
Question 18
Which of the following is not possible in biological systems?
A
Glucose -> amino acid -> Protein
B
Protein -> RNA -> DNA
C
RNA -> DNA -> Protein
D
DNA -> RNA -> Protein
Question 19
The kidney function do not include
A
Re-absorption of bile salts
B
Excretion of toxic materials
C
Osmoregulation
D
Excretion of nitrogenous waste
Question 20
Oxidation of copper occurs in
  1. CuSO4 + Zn   → ZnSO4 + Cu
  2. Cu + AgNO3   → CuNO3 + Ag
  3. Fe + CuSO4   → Fe2(SO4)3 +Cu
  4. Cu + AuCl3     → 3 CuCl + Au
A
A and D
B
B and D
C
A and B
D
B and C
Question 21
Brown ring test is confirmatory test for which anionic species
A
Chloride
B
Fluoride
C
Bromide
D
Nitrate
Question 22
Which of the following has the shortest gestation period
A
Cow
B
Goat
C
Camel
D
Buffalo
Question 23
Smog is due to...
A
Low temperature of earth surface
B
increase in Carbon dioxide
C
More moisture in environment
D
Air pollution derived from smoke and vehicles
Question 24
Copper sulphate in presence of excess of ammonia gives blue color, the blue is due to
A
Cupric ions
B
Complex ligand formation
C
Cuperous ions
D
Ammonium Sulphate
Question 25
High biological oxygen demand in water body indicates
A
Pressure of heterotrophs
B
High Photo autotroph
C
Organic pollutant
D
Chemical pollution
Question 26
Serum is
A
another name of Plasma
B
None of the above
C
Plasma without fibrinogen
D
Purified blood
Question 27
The fact that night sky is dark shows that the universe
A
originated in big bang
B
is not infinitely old
C
is infinitely old
D
is infinite in extent
Question 28
Which of the following is not direct consequence of green house effect
A
Tsunami
B
Increase in sea level
C
Global warming
D
Rainfall
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