SEE Science Model Question
Subject: Science &
Technology Full
Marks: 75
Class: 10 Time: 3hrs. Pass
Marks: 30
Candidates are requires to write their answers according to the
instruction given.
Attempt all questions.
Group A (10×1=10)
1. Write the correct
alternatives
a. Which of the following is example of Phylum Platyhelmenthis?
i. Tapeworm ii Sandworm
iii. Earthworm iv. Hookworm
b. In a science laboratory, two
organisms are noticed. Both organisms are long and cylindrical. Organism
"A" has cylindrical segmented body and organism "B" has no
segmented body. Then, which of the following is correct?
i. Organism
A is hermaphrodite where as organism B is unisexual.
ii.
Organism A is unisexual whereas organism B is hermaphrodite.
iii.
Organism A is diploblastic whereas organism B is triploblastic.
iv.
Organism A is triploblastic whereas organism A is diploblastic.
c. Which of the following is
the phenotype ratio of monohybrid cross in Mendel's experiment?
i. 1:2 ii. 3:1 iii. 1:2:1 iv.
9:1
d. Which of the following is supported by honey farming?
i. Mustard farming ii. Candle
industry iii. Flower farming iv. Pea
farming
e. Which of the given equipment is based on Archimedes'
principle?
i.
Submarine ii. Hydraulic brake iii. Water pump iv. Thermometer
f. A
person inside lift weighing his/her weight on digital balance but suddenly lift
fall at acceleration of 9.8m/s2 then what would be change in the
weight balance? (Given: mass of a person is 50 kg)
i. weight will be shown
50 kg ii. Weight will be shown 490 N
iii.
weight will be 0 N iv.
Weight of the person increases due to acceleration
g. The critical angle of diamond is 240
then what will be the value of its refractive index?
i. 2.45 ii. 1.5 iii. 1.24 iv.
2.24
h. How
many independent variables should be there in one experiment?
i. 1 ii. 2 iii. 3 iv.
4
i. If
we have to put iron rims in wooden wheels of a cart, what should we heat?
i. Heat the metal rim
first and then heat the wheel.
ii. Heat the wheel and
the rim at the same time.
iii. Heat the rim and put
it in the cold wheel.
iv. Heat the wheel first
and then heat the iron rim.
j. In the given
chemical reaction which one is the X?
HCl + X NaCl + H20
i.
NaOH ii. Na iii. NaH
iv. Na + H2O
Group B (9x1=9)
2. Give very short answer
to the following questions.
a. Define hermaphrodite.
b. What is meant by water canal system in porifera?
c. What type of cell division is shown in the diagram?
d. What
is variable?
e. On
what condition does a body become weightless inside of the earth’s
gravitational field?
f. What is the relation between specific heat capacity and rate
of increase or decrease in its temperature?
g. What do you mean by
reef gold and alluvial gold?
h. Compare the
ionization of Mg and Al.
i. Write the full form of IUPAC.
Group C (14x2=28)
Give short answer to the following questions.
3. Write any two differences between bird and bat.
4. If 'A' and 'B' are fertilized and unfertilized eggs
respectively. Which type of honey bee is developed from 'B'? Also, write one
function of such bee.
5. Describe the process of In Vitro fertilization (IVF) in
brief.
6. Classification
of living being is important in the study of biology, why?
7. Write down one use of each of following plants:
a) Titepati b) Yarsagumba
8. Draw
a chart showing cross between red and white flowered pea plants till Fzs
generation. Write down phenotype and genotype of F2 generation.
9. Prove the equation that acceleration due to gravity is
inversely proportional to the square of radius.
10. A
hydraulic machine is considered as a force multiplier. Give reason.
11. Sunita needs 15 kg of water at 38°C to take bath. But, she
has water at 20°C. Calculate the minimum amount of heat energy required to heat
the water to the required temperature.
12. When
the letters written on the paper are observed from the top of a glass slab, the
letters appear to be slightly raised, why?
13. Define homologous
series.
14. How does the
concentration of solution affects the rate of chemical reaction? Write down
with example.
15. Unsaturated
hydrocarbon is more reactive than saturated hydrocarbon, why?
16. How are metals
refined by electro-refining method? Illustrate with one example.
Group D (7x4=28)
Give long answer to the following questions.
17. A
and B are husband and wife, they have only four their daughters, A blames to B
for the birth of only daughters. Who is more responsible and why? Make a chart
with your logic.
18.
Despite the availability of medicinal herbs in our surrounding, we are
dependent upon imported medicines. What could be the cause of this situation?
What can we do to increase the use of medicinal herbs?
19. When the white ray of light enters to the prism, only the visible uppermost and lowermost rays of light are shown in the diagram
a. Name the rays
A and B.
B
b. Which ray has
more speed in the glass
medium?
c) Which phenomenon is shown in the given diagram?
d) Ray B bends more than the ray A. What is the reason behind
it?
20. Explain the clinical thermometer with diagram.
21. The different weight of a piece of a stone on weighing in
three different media; air, water and salt solution are given in the table
below. Answer the following questions.
|
Medium |
Weight |
|
A |
15N |
|
B |
20N |
|
C |
17N |
a) Of the three media A, B and C which is water and which is
salt solution?
b) If the weight of 1 kg mass in air is 10N. Determine the mass
of the stone
c) Determine the weight of water displaced by the stone.
22. Given diagram is the apparatus used in the preparation
of ammonia gas in laboratory. Answer the following questions observing the
diagram.
i. Why is the hard
glass test tube inclined downward? [1]
ii. Why is ammonia gas not collected over water? [1]
iii. How can you confirm that gas jar is filled with ammonia gas? [1]
iv. What happens when ammonia is treated with Na metal? [1]
23. State modern periodic table. Write down the electronic
configuration of the element which lies in second period and sixth group of the
modern periodic table based on sub-shells. Write down two factors that
determine the reactivity of elements. [1+2+1]
END
