Secondary Education Examination (SEE)
Science and Technology
2081 (2025) · Karnali · English medium
ℹ️ Give the answers in your own creative style based on the given instructions. Figures in the margin indicate the full marks. Attempt all the questions.
Section 'A' — Multiple Choice Questions
Choose the best alternative to the following questions and write in the answer sheet. (10×1=10)
- 1
a)Which one of the following is a derived unit?1
aCandelabAmperecNewtondMoleb)What is the reason of keeping sea-urchin in phylum echinodermata?1
aDue to body being divided into head, thorax and abdomenbDue to locomotion with the help of tube-feetcDue to body being flat and thin like a tapedDue to them being found in moist soil and waterc)Which disease is caused due to the deficiency of white blood cells in blood suddenly?1
aleukopeniabhaemophiliacanemiadleukemiad)In the given organism, what is the relationship between caterpillar and fungi?1
asaprotrophicbparasiticcpredatordsymbiotice)What could be the weight of a body on the Earth if its weight on the Moon is 5 N?1
a⁵⁄₆ Nb5 Nc30 Nd50 Nf)Which type of lens is thicker at middle and thinner at edges?1
aconcave lensbconvex lenscplano convexdplano concaveg)Under what condition can a flat universe be hypothesized?1
awhen the average density is greater than the critical densitybwhen the average density is less than the critical densitycwhen the average density and critical density are equaldwhen the average density and critical density are not comparableh)What are the products obtained in a reaction between hydrochloric acid and sodium hydroxide?1
aNaNO₃ + H₂bNaCl + H₂OcNaNO₃ + H₂OdNaNO₃ + O₂i)What does carbogen indicate?1
aMixture of carbon dioxide and nitrogenbMixture of carbon dioxide and hydrogencMixture of carbondioxide and waterdMixture of carbondioxide and oxygenj)Which of the following hydrocarbons group belongs to alkyne?1
(A)
(B)
(C)
(D)
aA and CbA and BcA and DdB and C
Section 'B'
Write very short answers to the following questions. (9×1=9)
- 2
a)What is online reputation?1
b)On the basis of their features, which one is less developed animal?1
A
B
c)What is the name of blood vessel that brings pure blood to the heart?1
d)What is magnetic field?1
e)Why is Big-Bang theory considered the most reliable theory among all the theories related to the origin of universe?1
f)Give an example of combination reaction.1
g)Write the molecular formula of the compound 'X' in the given chemical equation. X + H₂SO₄ → Na₂SO₄ + H₂O1
h)Write the molecular formula of the acid formed when carbon dioxide gas is dissolved in water.1
i)Which element acts as a foaming agent in Reetha?1
Section 'C'
Write short answers to the following questions. (14×2=28)
- 3
Define fundamental unit and give one example.2
- 4
Fern is not a flowering plant; cycas bears flowers but no fruit; banana bears flowers as well as fruits. However all these plants are kept in same division. Give any two reasons, why they are all kept in the same division.2
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