Distillation is a process where evaporation and condensation occur simultaneously. The correct ascending order of calorific values of fuels is coke, natural gas, water gas, methane, hydrogen. A light ray entering a denser medium at an angle of incidence greater than the critical angle will undergo total internal reflection and not emerge through the second material. Convention occurs due to a change in intermolecular attraction. Binary fission results in a protozoan population of 256 after 8 generations of reproduction.

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CTET SCIENCE Previous Paper 2
1. Distillation is a process in which
a. evaporation takes place
b. condensation takes place
c. evaporation and condensation go simultaneously (answer)
d. solid and liquid matter change into gaseous state
2. The correct ascending order of the calorific values of the fuels is
a. water gas – coke – natural gas – methane – hydrogen
b. methane – coke – hydrogen – water gas – natural gas
c. coke – natural gas – water gas – methane – hydrogen (answer)
d. natural gas – water gas – coke – methane – hydrogen
3. A light ray is incident on a transparent material x which is in contact with another transparent
material Y. The reason for the ray to all in emerging out through Y is
a. X is rarer medium and i C ∠
< b. X is denser medium and i C ∠ > (answer)
c. X is denser medium and i C
d. Y is rarer medium and i C
4. Convention takes place with the change in which of the following physical properties?
a. Intermolecular attraction (answer)
b. Ionization
c. density
d. solubility
5. The members in the population of a protozoan after 8 generations through reproduction is 256. The
type of reproduction is
a. Binary fission (answer)
b. multiple fission
c. primary fission
d. secondary fission
6. The most common and widely distributed species of Malaria in which fever recurs in every 48
hours is
a. P. ovale
b. P. falciparum (answer)
c. P. vivax
d. P. malariae
7. To initiate artificial rains, the clouds can be seeded with
a. liquid O2

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b. solid H2
c. liquid CO
d. solid CO2 (answer)
8. A person lost his right leg in accident at the age of 25. According to august Weismann, in the
above case, after his marriage all his children will be
a. physically handicapped
b. normal (answer)
c. mentally retarded
d. 50% normal
9. The parts of a plant which phototropism and geotropism respectively are
a. roots, stems
b. stems, roots (answer)
c. fruits, leaves
d. roots, fruits
10. A farmer wants to encourage allogamy for a better crop in his field. He has to move
a. Androecium in unisexual flowers
b. Gynoecium in bisexual flowers
c. either androecium or gynoecium in bisexual flowers (answer)
d. both androecium and gynoecium in bisexual flowers
11. Arrange the plants namely Garden Pea, Paddy, sugarcane and wheat in the descending order of
haploid chromosomal number present in their cells
a. Wheat, Paddy, Garden Pea, Sugarcane
b. Sugarcane, Wheat, Paddy, Garden Pea
c. Garden Pea, Paddy, Wheat, Sugar cane (answer)
d. Paddy, Wheat, Garden Pea, Sugarcane
12. The number of molecules of energy currency. FADH2 and NADH2 formed in ethanolic
fermentation respectively are
a. 0, 2 , 1
b. 2, 2, 2
c. 2, 2, 6
d. 2, 0, 2 (answer)
13. Find the mismatched pairs related to seeds I. Autochory – by wind II. Anemochory – by self III.
Hydrochory – by water IV. Zoochory – by animals Of these
a. I, III
b. II, I (answer)
c. II, III
d. IV, I

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14. The element ………….. is a constituent of chlorophyll
a. As
b. Be
c. Cs
d. Mg (answer)
15. Bright colour, aroma and flavor of fruits and vegetables are due to the presence of
a. phenolic compound (answer)
b. melanin
c. amino acids
d . fatty acids
16. Antacid tablets like MPS contain
a. Ca (OH)2
b. NAOH
c. Mg (OH)2 (answer)
d. KOH and NAOH
17. Silver bromide decomposes into Ag and Br2 when it is a. magnetized b. exposed to sunlight
(answer)
c. cooled in a dark place
d. exposed to humid air (moisture)
18. Which one of the following coal products is used in the manufacture of naphthalene balls?
a. coal gas
b. gas carbon
c. coal tar (answer)
d. liquid ammonia
19. In our vertebral column out of 26/33 vertebra present, the highest and least number of vertebrae
respectively are
a. thoracic, lumber
b. thoracic, coccygeal (answer)
c. Cervical, sacral
d. sacral, coccygeal
20. Identify the statement not related to cloning
a. organism is produced asexually
b. Organism is derived from a single parent
c. A natural clone was developed by Dr. Ian Wilmut
d. Clone is the living carbon of parents (answer)

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21. Reverse osmosis is different from osmosis in the following aspects I. Pressure to be applied II.
Energy needed III. Water flows from higher gradient to lower gradient IV. Semi permeable
membrane is essential Of these
a. I, II
b. I, IV
c. III, IV
d. I, III (answer)
22. A student of a class IX has been provided with the following equipment and materials Rubber
tube, clips, one holed rubber stopper, y- shaped glass tube, balloons, rubber sheet, wide mouthed
glass bottle and twine. By making use of the above, the student can prepare a working model of
a. Stethoscope
b. Kidneys (answer)
c. Lungs
d. Blood circulation
23. A project is a bit of real life that has been imparted into the school.” This is the definition of
a. Prof. Ballard
b. Dr. Kiloatrick
c. Stevenson
d. H.E. Armstrong (answer)
24. Which of the following statements is not true with meristematic tissue?
a. present in all living beings (answer)
b. responsible for the growth of the individual
c. present only in some specific regions of the individual
d. cells can divide continuously producing similar immature cells
25. In the process of plant micro propagation, the technician in the laboratory forgot to add
cytokinins to the culture medium. After somedays he observed
a. a number of shoots from the callus
b. a number of roots from the callus
c. delayed organogenesis in the callus (answer)
d. several outgrowths from the callus
26. Albinos are
a. Black people
b. white people
c. the people who totally lack melanin (answer)
d. the people who have more melanin concentration
27. After learning the lesion ‘Classification of Planets’ the students is able to classify the given
planets basing on their morphological characters. thus the teacher achieved which of the following

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objectives?
a. Comprehension
b. Knowledge (answer)
c. Aptitude
d. Precision
28. Which one of the following is not the first step in development of lesson plan?
a. Introduction
b. Testing of previous knowledge
c. Motivation
d. Initiation (answer)
29. The number of oxides that are possible with nitrogen is
a. 4
b. 3
c. 6
d. 5 (answer)
30. A combustion is said to be ‘incomplete’ if
a. a part of combusting substance remains
b. the combusting substance burns with blue flame leaving behind some ash
c. the combusting substance produces carbon monoxide (answer)
d. the substance burns with red flame, producing carbon dioxide