2023 SEBA/ASSEB Class 10 General Science Question Paper | HSLC Previous Year Paper
2023 SEBA/ASSEB HSLC Class 10 General Science Previous Year Question Paper – Assam Board Exam
Class 10 General Science , 2023 Question Paper
SECTION – A
1. Choose the correct answer : 1 × 10 = 10
(i) Which of the following is not an example of metalloid ?
(a) Si (b) Ge (c) B (d) Al
(ii) Which of the following compound is used in soda – acid fire extinguisher ?
(a) NaCl (b)
(c) 
(d) 
(iii) Decomposition of vegetable matters into compost is an example of which of the following class of reaction ?
(a) Endothermic reaction (b) Exothermic reaction (c) Both (d) None of the above
(iv) When electric current is passed through the coil of a solenoid, then the magnetic field
(a) increase along the direction of current . (b) decreases along the direction of current . (c) remains the same at all times. (d) becomes zero
(v) Which of the following is used to measure the potential difference of a circuit ?
(a) Ammeter (b) Voltmeter (c) Galvanometer (d) Multimeter
(vi) Which of the following is a conventional 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 (c) Hydrogen (d) 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 (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) 1 D (c) 1.5 D (d) 2 D
2. Choose the correct answer of the following : 1 × 10 = 10
(i) Image formed by a concave mirror is
(a) real and diminished (b) real and enlarged (c) virtual and enlarged (d) Virtual and diminished
(ii) If the refractive index of glass is 1.5, then speed of light in glass is :
(a) 
m/s (b) 
m/s (c) 
m/s (d) 
m/s
(iii) Breakdown of glucose into pyruvate takes place in the
(a) Cell cytoplasm (b) Mitochondria (c) Cell membrane (d) Golgi body
(iv) The energy currency for most of the cellular processes is
(a) ADP (b) AMP (c) ATP (d) 
(v) The gap between the two neurons is called a
(a) dendrite (b) synapse (c) axon (d) nerve ending
(vi) Which of the following is a plant hormone ?
(a) 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
(a) Regeneration (b) Budding (c) Fragmentation (d) Fission
(viii) Binary fission occurs in
(a) Amoeba (b) Paramoecium (c) Planaria (d) All of these
(ix) An example of homologous organs are
(a) wings of a bird and a bat (b) wings of a butterfly and a bat (c) wings of a pigeon and hands of man
(d) wings of a parrot and a honey bee
(x) Which of the following chromosome sets will determine the male sex in a human infant ?
(a) XX (b) XY (c) XO (d) YO
3. Fill in the gaps :
(i) The hydrocarbon which is the major component of Compressed Natural Gas (CNG) is ...................
(ii) The product ‘X’ of the following reaction is ..................
(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 .
(vi) A feedback mechanism regulates the action of the ........................
(vii) The ...............mirror is used as rear view in vehicles.
(viii) In electric generator, energy converted from .................... energy to ...................energy.
(ix) The 3rd trophic level of a food chain is .........................
(x) When combustion takes place in insufficient air (oxygen) .................. gas produces .
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