Govt. Supplementary Exam - June 2023
|
Time Allowed: 3.00
Hrs |
10th Science |
Maximum Marks: 75 |
Instruction: (1) Check the question paper for fairness of
printing. If there is any lack of fairness, inform the Hall Supervisor
immediately.
(2) Use Blue or Black ink to write
and underline and pencil to draw diagrams
Note: This question paper
contains four Parts.
PART - I
Note: (i) Answer all the questions. 14
x 1 = 14
(ii) Choose
the most appropriate answer from the given four alternatives and write
the option code and the corresponding answer.
1. To project the rockets which of the
following principle(s) is/are required ?
(a) Newton’s third law of motion
(b) Newton’s law of gravitation
(c) Law of conservation of linear momentum
(d) Both (a) and
(c)
2. Kilowatt hour is the unit of ___________
(a) resistivity
(b) conductivity
(c) electrical
energy
(d) electrical power
3. If the radiation exposure is about 100 R,
it may cause___________.
(a) Skin
disorder
(b) Hair loss
(c) Leukemia
(d) Death
4. _________ is an important metal to form
amalgam.
(a) Ag
(b) Hg
(c) Mg
(d) A1
5. Which of the following is hygroscopic in
nature ?
(a) Ferric Chloride
(b) Copper Sulphate Penta Hydrate
(c) Silica Gel
(d) None of the above
6. H2(g)+ Cl2(g) → 2HCl(g) is a :
(a) Decomposition
Reaction
(b) Combination
Reaction
(c) Single Displacement Reaction
(d) Double Displacement Reaction
7. Casparian strips are present in the
_________ of the root.
(a) Cortex
(b) Pith
(c) Pericycle
(d) Endodermis
8. A patient
with blood group ‘O’ was injured in an accident and has blood loss. Which group
of blood should be used by the doctor for transfusion ?
(a) ‘O’ group
(b) ‘AB’ group
(c) ‘A’ or 'B’ group
(d) All blood group
9. There are _________ pairs of Cranial nerves
and _________ pairs of Spinal nerves
(a) 12,31
(b) 31,12
(c) 12,13
(d) 12,21
10. Which of the following is referred as “Master
Gland” ?
(a) Pineal
gland
(b) pituitary gland
(c) Thyroid gland
(d) Adrenal gland
11. “World No Tobacco Day” is observed on
_________.
(a) May 31
(b) June 6
(c) April 22
(d) October 2
12.
Which of the following is/are a fossil
fuel ? (i) Tar, (ii) Coal, (iii)
Petroleum
(a) (i) only
(b) (i) and (ii)
(c) (ii) and (iii)
(d) (i), (ii) and (iii)
PART - II
Note : Answer any seven questions. Question no. 22 is
compulsory. 7x2=14
13. Define the unit of Current. (Ans : Unit 4)
14. Name any three animals which can hear ultrasonic vibrations. (Ans : Unit 5)
15.
Define Relative atomic mass.
16. Name the simplest ketone and give its
structural formula.
17.
What does CNS stand for ?
18. Define Triple fusion.
19. Draw and Label the structure of ‘Oxysomes’. (Ans : Unit 12)
20. Why is Archaeopteryx considered to be a
connecting link ?
21. State the applications of DNA Finger Printing
Techniques.
22. A charge of 12 Coulomb flows through a bulb in 5 seconds.
What is the current through the bulb? (Ans : Unit 4)
PART - III
Note : Answer any seven questions. Question no. 32 is
compulsory. 7x4=28
23. State the Universal law of gravitation and
derive its mathematical expression.
24. (i)
State Boyle’s law.
(ii) Distinguish between real gas and
ideal gas.
25. Match the following :
(i) (a) Co - 60 - Age of Fossil
(b) I - 131 -
Function of Heart
(c) Na - 24 -
Cancer
(d) C - 14 -
Thyroid disease
(ii) Use the analogy to fill in the blank.
1) Spontaneous
Process: Natural Radioactivity
Induced
Process : __________________
2) Nuclear Fusion : Extreme
temperature
Nuclear
Fission : __________________
26. i) What is
rust ? Give the equation for the formation of rust.
ii) State
two conditions necessary for rusting of iron.
27. Write notes on various factors affecting solubility. (Ans : Unit 9)
28. Explain how
neurons are classified based on its structure.
29. Write the events involved in the Sexual
reproduction of a flowering plant.
a) State the types of first event.
b) Mention the advantages and the
disadvantages of that event.
30. Write the importance of biotechnology in the field of medicine. (Ans : Unit 20)
31. Write a note on EDITOR and its main parts. (Ans : Unit 23)
32.
Calculate the percentage of each element
in Calcium Carbonate [CaCO3]
[Atomic Mass Ca=40; C= 12; O = 16)
PART - IV
Note : Answer all the questions. Draw diagrams wherever necessary. 3x7=21
33. (a) (i) Draw a ray diagram to show the image formed by a convex lens when the object is placed between F and 2F. (Ans : Unit 2)
(ii) State Rayleigh's law of Scattering. (Ans : Unit 2)
(iii) Differentiate - Convex lens and Concave lens. (Ans : Unit 2)
OR
b) Compare the properties of Alpha, Beta
and Gamma rays.
34. (a) (i) Write notes
on :
(1) Saturated Solution (2) Unsaturated Solution
(ii) In what way hygroscopic substances differ from deliquescent
substances ?
OR
(b) (i) What is chemical equilibrium ? What are its characteristics ? (Ans : Unit 10)
(ii) Differentiate reversible and irreversible reactions.
35. (a) How is the
structure of DNA organised ? What is the biological significance of DNA?
OR
(b) (i) State
the various routes by which transmission of human immunodeficiency virus (HIV) takes place.
(ii)
State the importance of rainwater harvesting.
- oOo
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