SEBA Class 10 Question Paper 2023 Science
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Page 1
ASSAM BOARD
QUESTION
PAPER
2023
Download PDF
QUESTION
PAPER
2023
Download PDF
Page 2
Total No. of Printed Pages : 31
Subject Code : C3 B23-GS
(EN/AS/BN/BD/HN)
3050 518708
2023
GENERAL SCIENCE
Full Marks : 90
Pass Marks : 27
Time :3 hours
Candidates shall note that each question will be multilingual, viz, in
English/Assamese/Bengali/Bodo/Hindi medium, for their ready reference.
Incase of any discrepancy or confusion in the medium/version,
the English version will be considered as the authentic version.
The figures in the margin indicate full marks for the questions.
1675
1 3050
Subject Code : C3 B23-GS
(EN/AS/BN/BD/HN)
3050 518708
2023
GENERAL SCIENCE
Full Marks : 90
Pass Marks : 27
Time :3 hours
Candidates shall note that each question will be multilingual, viz, in
English/Assamese/Bengali/Bodo/Hindi medium, for their ready reference.
Incase of any discrepancy or confusion in the medium/version,
the English version will be considered as the authentic version.
The figures in the margin indicate full marks for the questions.
1675
1 3050
Page 3
1, SECTION -A
Choose the correct answer : 1 × 10 = 10
() Which of the following is not an
example of metalloid ?
(a) Si
(c)B b) Ge
(d) Al
(11) Which of the following compound is used in
soda- acid fire extinguisner
(a) NaCI
(c) NaHCO,
(b)_Na,cO,
(d) NH,CI
(iii) Decomposition of vegetable matters into compost is an
example of which of
the following class of reaction ?
B23-GS (EN/AS/BN/BD/HN) 2
3050
Choose the correct answer : 1 × 10 = 10
() Which of the following is not an
example of metalloid ?
(a) Si
(c)B b) Ge
(d) Al
(11) Which of the following compound is used in
soda- acid fire extinguisner
(a) NaCI
(c) NaHCO,
(b)_Na,cO,
(d) NH,CI
(iii) Decomposition of vegetable matters into compost is an
example of which of
the following class of reaction ?
B23-GS (EN/AS/BN/BD/HN) 2
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Page 4
(a) Endothermic reaction (b) Exothermic reaction
(c) Both (d) None of the above
D
(iv) When electric current is passed through the coil of a solenoid, then the
magnetic field
(a) increases along the direction of current.
(b) decreases along the direction of current.
B23-GS (EN/AS/BN/BD/HN) 3 3050
(c) Both (d) None of the above
D
(iv) When electric current is passed through the coil of a solenoid, then the
magnetic field
(a) increases along the direction of current.
(b) decreases along the direction of current.
B23-GS (EN/AS/BN/BD/HN) 3 3050
Page 5
(C) remains the same at all timeS.
(d) becomes zero
D
(V) Which of the
circuit ?
following is used to measure the potential difference ol a
(ahAmmeter (b) Voltmeter
(c) Galvanometer (d) Multimeter
B23-GS (EN/AS/BN/BD/HN) 4 3050
(d) becomes zero
D
(V) Which of the
circuit ?
following is used to measure the potential difference ol a
(ahAmmeter (b) Voltmeter
(c) Galvanometer (d) Multimeter
B23-GS (EN/AS/BN/BD/HN) 4 3050
Page 6
(vi) Which of the following is a conyentional source of energy ?
(a) Wind energy (b), Nuclear energy
(c) Geo-thermal energy (d) Wave energy
(vii) Which of the following can depleted Ozone layer ?
(a) Chloroflouro carbon (b) Nitrogen
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(a) Wind energy (b), Nuclear energy
(c) Geo-thermal energy (d) Wave energy
(vii) Which of the following can depleted Ozone layer ?
(a) Chloroflouro carbon (b) Nitrogen
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Page 7
(c), Hydrogen () Oxygen
(viii) Which of the following constitute a food chain ?
(a) Grass, Wheat and Mango
(b) Grass, Goat and Human
(c) Goat, Cow and Elephant
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(viii) Which of the following constitute a food chain ?
(a) Grass, Wheat and Mango
(b) Grass, Goat and Human
(c) Goat, Cow and Elephant
6 3050
B23-GS (EN/AS/BN/BD/HN)
Page 8
(d) Grass, Fish and Goat
(ix) Which of the following is responsible for change in the curvature of eye
lenses ?
(a) Retina (b) Iris
(c) Ciliary muscles (d) Optic nerve
(x) The focal length of a lens is 1 metre. Its power is
(a) 0.5 D (b) 1D
(c1.5 D (d) 2D
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B23-GS (EN/AS0BN/BD/HN)
(ix) Which of the following is responsible for change in the curvature of eye
lenses ?
(a) Retina (b) Iris
(c) Ciliary muscles (d) Optic nerve
(x) The focal length of a lens is 1 metre. Its power is
(a) 0.5 D (b) 1D
(c1.5 D (d) 2D
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B23-GS (EN/AS0BN/BD/HN)
Page 9
|x 10 10
2. Choose the correct answer of the following:
() Image formed by a concave mirror is
(a) real and diminished
(6) real and enlarged
virtual and enlarged
(c),
(d) virtual and diminished
B23-GS (EN/AS/BN/BD/HN) 8 3050
2. Choose the correct answer of the following:
() Image formed by a concave mirror is
(a) real and diminished
(6) real and enlarged
virtual and enlarged
(c),
(d) virtual and diminished
B23-GS (EN/AS/BN/BD/HN) 8 3050
Page 10
( Ifthe refractive index of glass is 1.5, then speed of light in glass is
(a)_2x 10 m/s (6), 3 x 10 m/s
(c) 2.25 x108 m/s (d) 3x 108 m/s
(ii) Breakdown of glucose into pyruvate takes place in the
(a) Cell cytoplasm (b), Mitochondria
(c) Cell membrane (d) Golgi body
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B23-GS (EN/AS/BN/BD/HN)
(a)_2x 10 m/s (6), 3 x 10 m/s
(c) 2.25 x108 m/s (d) 3x 108 m/s
(ii) Breakdown of glucose into pyruvate takes place in the
(a) Cell cytoplasm (b), Mitochondria
(c) Cell membrane (d) Golgi body
9 3050
B23-GS (EN/AS/BN/BD/HN)
Page 11
(1V) The energy currency for most of the cellular
processes1S
(a) ADP (b) AMP
I(c) ATP
(v) The gap between the two
neurons is called a
(a) dendrite
(b) synapse
(c) axon (d) nerve ending
B23-GS (EN/AS/BN/BD/HN) 10
3050
processes1S
(a) ADP (b) AMP
I(c) ATP
(v) The gap between the two
neurons is called a
(a) dendrite
(b) synapse
(c) axon (d) nerve ending
B23-GS (EN/AS/BN/BD/HN) 10
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Page 12
a
(vi) Which of the following is plant hormone ?
(al Insulin (b) Thyroxin
(c) Oestrogen (d) Cytokinin
(vii) The process of giving rise to new individual organisms from the body parts
of many fully differentiated organisms is known as
B23-GS (EN/AS/BN/BD/HN) 11 3050
(vi) Which of the following is plant hormone ?
(al Insulin (b) Thyroxin
(c) Oestrogen (d) Cytokinin
(vii) The process of giving rise to new individual organisms from the body parts
of many fully differentiated organisms is known as
B23-GS (EN/AS/BN/BD/HN) 11 3050
Page 13
(a) Regeneration (b) Budding
(c) Fragmentation (d) Fission
fardsA
(vii) Binary fission occurs in
(a) Amoeba (b) Paramoecium
(c) Planaria (d) Allof these
B23-GS (EN/AS/BN/BD/HN) 12
3090
(c) Fragmentation (d) Fission
fardsA
(vii) Binary fission occurs in
(a) Amoeba (b) Paramoecium
(c) Planaria (d) Allof these
B23-GS (EN/AS/BN/BD/HN) 12
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Page 14
(ix) An example of homologous organs are
(a) wingsof a bird and a bat
(b) wings of a butterfly and a bat
Yc) wings of a pigeon and hands of man
(d) wings of a parrot and a honey bee
B23-GS (EN/AS/BN/BD/HN) 13 3050
(a) wingsof a bird and a bat
(b) wings of a butterfly and a bat
Yc) wings of a pigeon and hands of man
(d) wings of a parrot and a honey bee
B23-GS (EN/AS/BN/BD/HN) 13 3050
Page 15
the male sex 1n a
(x) Which of the following chromosome sets will determine
human infant ?
(a) XX b) XY
(c) Xo (d) YO
3. Fill in the gaps : 1x 10= 10
) The hydrocarbon which is the major component of Compressed Natural Gas
(CNG) is
(i) The product 'X of the following reaction is
3Fe +4HO’ Xt 4Hag)
B23-GS (EN/AS/BN/BD/HN) 14
3050
(x) Which of the following chromosome sets will determine
human infant ?
(a) XX b) XY
(c) Xo (d) YO
3. Fill in the gaps : 1x 10= 10
) The hydrocarbon which is the major component of Compressed Natural Gas
(CNG) is
(i) The product 'X of the following reaction is
3Fe +4HO’ Xt 4Hag)
B23-GS (EN/AS/BN/BD/HN) 14
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Page 16
(iii) When iron is
mixed with nickel and chromium, we get an alloy named
(iv) The process by which some organisms fulfil their carbon and energy
requirements and yields their stored form of energy is
(v) and are the reproductive parts of a flower which
contain the germ- cells.
3050
B23-GS (EN/AS/BN/BD/HN) 15
mixed with nickel and chromium, we get an alloy named
(iv) The process by which some organisms fulfil their carbon and energy
requirements and yields their stored form of energy is
(v) and are the reproductive parts of a flower which
contain the germ- cells.
3050
B23-GS (EN/AS/BN/BD/HN) 15
Page 17
(vi) A feedback mechanism regulates the action of the
(vii) The mirror is used as rear view in vehicles.
(vii) In electric generator, energy energy to
converted from
energy.
(ix) The 3rd trophic level of a food chain is
(x) When combustion takes place in
insufficient air (oxygen) gas
produces.
B23-GS (EN/AS/BN/BD/HN) 16
3050
(vii) The mirror is used as rear view in vehicles.
(vii) In electric generator, energy energy to
converted from
energy.
(ix) The 3rd trophic level of a food chain is
(x) When combustion takes place in
insufficient air (oxygen) gas
produces.
B23-GS (EN/AS/BN/BD/HN) 16
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Page 18
4. Answer in very short: 1x 10 =10
() Among K, Na,Ca and Mg, which one is the least reactive metal ?
K,Na, Ca iFMg fyur MAOA PU DRON 4?
K, Na, Ca qR Mg - « fsUK OADA fAO| CAØ PA ?
K, Na, Ca 3RÌ Mg f 4I<a HAA Huif| aufgyGH?
(ii) On heating gypsum at 373 K, it loses water molecule and produces a white
powder. What is the chemical formula of the white powder ?
B23-GS (EN/AS/BNBD/HN) 17 3050
() Among K, Na,Ca and Mg, which one is the least reactive metal ?
K,Na, Ca iFMg fyur MAOA PU DRON 4?
K, Na, Ca qR Mg - « fsUK OADA fAO| CAØ PA ?
K, Na, Ca 3RÌ Mg f 4I<a HAA Huif| aufgyGH?
(ii) On heating gypsum at 373 K, it loses water molecule and produces a white
powder. What is the chemical formula of the white powder ?
B23-GS (EN/AS/BNBD/HN) 17 3050
Page 19
(ii) Write the thermite reaction.
(iv) Sodium react violently with cold water and immediately catches fire aue to
the liberation of aparticular gas. Identify the gas:
(v) What is the least distance of
distinct vision of normal eye ?
(vi) State the S.I. unit of electric charge.
B23-GS (EN/AS/BN/BD/HN) 18
3050
(iv) Sodium react violently with cold water and immediately catches fire aue to
the liberation of aparticular gas. Identify the gas:
(v) What is the least distance of
distinct vision of normal eye ?
(vi) State the S.I. unit of electric charge.
B23-GS (EN/AS/BN/BD/HN) 18
3050
Page 20
(vii) Who frst discovered that aing magnet can generate electric current in a
coil ?
PAAA ?
(viii) What 1s the approximate percentage of methane in Bio-gas ?
(ix) What will happen if a person consumes iodine deficient food ?
(x) How would you define a 'gene' ?
19 3050
B23-GS (EN/AS/BN/BD/HN)
coil ?
PAAA ?
(viii) What 1s the approximate percentage of methane in Bio-gas ?
(ix) What will happen if a person consumes iodine deficient food ?
(x) How would you define a 'gene' ?
19 3050
B23-GS (EN/AS/BN/BD/HN)
Page 21
5, Determine true or false : 1x5=5
() In modern periodic table, elements are arranged in 18 vertical columns and 7
horizontal rows.
(ii) Precipitation reactions produce
insoluble salts.
(iii) Non-metals can displace
hydrogen from dilute acids.
|-GS (ENIAS/BN/BD/HN) 20
3050
() In modern periodic table, elements are arranged in 18 vertical columns and 7
horizontal rows.
(ii) Precipitation reactions produce
insoluble salts.
(iii) Non-metals can displace
hydrogen from dilute acids.
|-GS (ENIAS/BN/BD/HN) 20
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Page 22
(iv) Coliform is a
group of bacteria, found in human brain.
(v) Roots, stems and leaves of some nlants
develop into new plants through
vegetative propagation.
SECTION B
6. Write one method for the preparation of bleaching powder. Write two uses of it.
1+1=2
21 3050
B23-GS (EN/AS/BN/BD/HN)
group of bacteria, found in human brain.
(v) Roots, stems and leaves of some nlants
develop into new plants through
vegetative propagation.
SECTION B
6. Write one method for the preparation of bleaching powder. Write two uses of it.
1+1=2
21 3050
B23-GS (EN/AS/BN/BD/HN)
Page 23
7. Find the product of the following reactions: 1+1=2
(a) CaCOss) +H,Oyt COxg)
(b) Na,C0,+ 10H,0’
8. Howmetallic character of elements
changes across periods and groups Ol Poi
table. Explain. 2
9. (a) Reaction between ethanoic acid and sodium
CO, and water. What is the salt ? carbonate produces a salt,
1
J4M ET34 qy ?
B23-GS (EN/AS/BN/BD/HN) 22
3050
(a) CaCOss) +H,Oyt COxg)
(b) Na,C0,+ 10H,0’
8. Howmetallic character of elements
changes across periods and groups Ol Poi
table. Explain. 2
9. (a) Reaction between ethanoic acid and sodium
CO, and water. What is the salt ? carbonate produces a salt,
1
J4M ET34 qy ?
B23-GS (EN/AS/BN/BD/HN) 22
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Page 24
(b) Find 'X': 1
xf ?
xf*N?
X' 3T1 T ?
'X' I ?
X
CH,CH,OH ’ CH,cOOH
10. Draw the ray diagram for the image formation by a convex lens, when object is
placed at centre of curvature. 2
11. Decomposition of 2 g of ferrous sulphate erystals when heated generated 1g solid
oxide and two different gases. ldentify the solid oxide and both the gases by
writing proper chemical reaction. 2
23 3050
B23-GS (EN/AS/BN/BD/HN)
xf ?
xf*N?
X' 3T1 T ?
'X' I ?
X
CH,CH,OH ’ CH,cOOH
10. Draw the ray diagram for the image formation by a convex lens, when object is
placed at centre of curvature. 2
11. Decomposition of 2 g of ferrous sulphate erystals when heated generated 1g solid
oxide and two different gases. ldentify the solid oxide and both the gases by
writing proper chemical reaction. 2
23 3050
B23-GS (EN/AS/BN/BD/HN)
Page 25
1+1=2
12. What do you mean by Corrosion and Rancidity ?Explain with examples.
13. Write four properties of magnetic lines of force. 2
14. Write two disadvantages of fossil fuels. 2
15. State any two methods in reducing the problem of waste
disposal. 2
B23-GS (EN/AS/BN/BD/HN) 24
3050
12. What do you mean by Corrosion and Rancidity ?Explain with examples.
13. Write four properties of magnetic lines of force. 2
14. Write two disadvantages of fossil fuels. 2
15. State any two methods in reducing the problem of waste
disposal. 2
B23-GS (EN/AS/BN/BD/HN) 24
3050
Page 26
16. Why should we conserve forests and wildlife ?
tef a-t ?
17. What is meant by powerof accommodation of the eye ?
18. State two factors does the resistance of a conductor depend. 2
19. An electric motor takes5A from a 220 V line. Determine the power of the motor
and the energy consumed in 2 hours. 2
4TA 42 H 220 VIg-f5T 5 ATI A|4e a Tt 2 IIA
25 3050
B23-GS (EN/AS/BN/BD/HN)
tef a-t ?
17. What is meant by powerof accommodation of the eye ?
18. State two factors does the resistance of a conductor depend. 2
19. An electric motor takes5A from a 220 V line. Determine the power of the motor
and the energy consumed in 2 hours. 2
4TA 42 H 220 VIg-f5T 5 ATI A|4e a Tt 2 IIA
25 3050
B23-GS (EN/AS/BN/BD/HN)
Page 27
20. What is Blood pressure ? What are systolic and diastolic pressures ? What should
be the normal systolic as well as diastolic pressure values of a normal person ?
%+1+ ½=2
?H Hfaf HHHaT
OR/AR0/RT/ya/ 3aI
What is lymph ? How does it differ from plasma ?
What are their functions ?
½+%+1=2
21. What is a neuromuscular
junction ? How does a nerve impulse travels from one
part to the other part of the body ?
½+1%=2
2I ?
OR /Rt/Rt/ yT/3I
B23-GS (EN/AS/BN/BD/HN) 26
3050
be the normal systolic as well as diastolic pressure values of a normal person ?
%+1+ ½=2
?H Hfaf HHHaT
OR/AR0/RT/ya/ 3aI
What is lymph ? How does it differ from plasma ?
What are their functions ?
½+%+1=2
21. What is a neuromuscular
junction ? How does a nerve impulse travels from one
part to the other part of the body ?
½+1%=2
2I ?
OR /Rt/Rt/ yT/3I
B23-GS (EN/AS/BN/BD/HN) 26
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Page 28
Draw a neat labelled diagram of a nerve cell and state its function. 1%+%=2
22. Give the differences between binary fission and multiple fission. 2
D
OR /AR0/R// HT
2
State the advantages in plants raised through vegetative propagation.
23. What factors could lead to the rise of a newW species ? 2
OR/Rt/q/yeT/FTAT
27 3050
B23-GS (EN/AS/BN/BD/HN)
22. Give the differences between binary fission and multiple fission. 2
D
OR /AR0/R// HT
2
State the advantages in plants raised through vegetative propagation.
23. What factors could lead to the rise of a newW species ? 2
OR/Rt/q/yeT/FTAT
27 3050
B23-GS (EN/AS/BN/BD/HN)
Page 29
colour then,
If both parents as well as the children are found to possesslight eye
or recessive nature ?
according to you the light eve colour tralt Is of dominant
2
Explain why or why not.
24. (a) Comment on the electrical
conductivity of ionic compounds in solid and
molten states. 1+1=2
B23-GS (ENIAS/BN/BD/HN) 28
3050
If both parents as well as the children are found to possesslight eye
or recessive nature ?
according to you the light eve colour tralt Is of dominant
2
Explain why or why not.
24. (a) Comment on the electrical
conductivity of ionic compounds in solid and
molten states. 1+1=2
B23-GS (ENIAS/BN/BD/HN) 28
3050
Page 30
(b) How electrolytic reduction is used for the extraction of metals? 1
?
25. An object of sze 7 cm is placed at 27 cm in front of a concave miror of focal
length 18 cm. Atwhat distance from the mirror should a sereen be placed,so that
asharp focussed image can be obtained 2 Find the size and the nature of the
image. 3
gp0G 18 cm CTÍAYSA TtAR 27 cm y 7 cm AQis T4
7cm HIgA 51 fäE 18 cm st454H t fsf 3rar qv HT4A 27 cm TSI
OR /AT/q0/I/3AT
B23-GS (EN/AS/BN/BD/HN) 29 3050
?
25. An object of sze 7 cm is placed at 27 cm in front of a concave miror of focal
length 18 cm. Atwhat distance from the mirror should a sereen be placed,so that
asharp focussed image can be obtained 2 Find the size and the nature of the
image. 3
gp0G 18 cm CTÍAYSA TtAR 27 cm y 7 cm AQis T4
7cm HIgA 51 fäE 18 cm st454H t fsf 3rar qv HT4A 27 cm TSI
OR /AT/q0/I/3AT
B23-GS (EN/AS/BN/BD/HN) 29 3050
Page 31
convexlens of
A2cmtall objectis placed perpendicular to the principal axis of a cm. Find the
focal length 10 cm. The distance of the object from the lens is 15 3
nature, position and size of the image.
2cm U QD 10cm MUNSg
2cm UN D R10 cm TR
26. What is the full form of ´ATP ? Why is it called as the "energy currency for m0st
of the cellular processes ? How do 'ATP molecules
produced ? What 1S au
'Endothermic process' ? How do "ATP molecules used to drive these processes
½+%+1+%+=3
OR///a/ 3I
B23-GS (EN/AS/BN/BD/HN) 30
3050
A2cmtall objectis placed perpendicular to the principal axis of a cm. Find the
focal length 10 cm. The distance of the object from the lens is 15 3
nature, position and size of the image.
2cm U QD 10cm MUNSg
2cm UN D R10 cm TR
26. What is the full form of ´ATP ? Why is it called as the "energy currency for m0st
of the cellular processes ? How do 'ATP molecules
produced ? What 1S au
'Endothermic process' ? How do "ATP molecules used to drive these processes
½+%+1+%+=3
OR///a/ 3I
B23-GS (EN/AS/BN/BD/HN) 30
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Page 32
What are the methods of excretion used by the plants to get rid of the excretory
materials ? 2+1=3
How do the strategies differ from that ofthe animals ?
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B23-GS (EN/AS/BN/BD/HN)
materials ? 2+1=3
How do the strategies differ from that ofthe animals ?
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B23-GS (EN/AS/BN/BD/HN)
Document Details
| Board / Org | Assam Board |
| Exam | Class 10 |
| Type | Question Paper |
| Pages | 32 |
| Updated | 30 Apr 2026 |