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HBSE ( Haryana Board ) Solution of Class 10th Science all chapters important MCQ Question And Answer of Physics, Chemistry and Biology Objective Question Solution.
Class 10 Science MCQ Important Question Answer for 2024 Chapter-Wise
Chemistry Objective Questions
HBSE Class 10 Science Chapter 1 – Chemical Reaction and Equations MCQ Question Answer 2024
1. What happens when dilute hydrochloric acid is added to iron fillings?
(a) Hydrogen gas and iron chloride are produced.
(b) Chlorine gas and iron hydroxide are produced.
(c) No reaction takes place.
(d) Iron salt and water are produced.
Answer
Ans – (a) Hydrogen gas and iron chloride are produced.
2. 2Pb(NO3)2(S) 2PbO(s) + 4NO2(g) + O2(g) This reaction is:
(a) Displacement
(b) Thermal decomposition
(c) Combination
(d) Exothermic
Answer
Ans – (b) Thermal decomposition
3. Fe2O3+2Al Al2O3 + 2Fe
Which is reduced in above reaction?
(a) Fe2O3
(b) Al
(c) Al2O3
(d) None of these
Answer
Ans – (a) Fe2O3
4. What is formula of slaked lime ? Most Important
(a) CaO
(b) Ca(OH)2
(c) CaCO3
(d) CaSO4
Answer
Ans – (b) Ca(OH)2
5. What type of reaction Respiration is ?
(a) Exothermic
(b) Endothermic
(c) Reduction
(d) Precipitation
Answer
Ans – (a) Exothermic
6. Oil and fat containing food items are flushed with nitrogen. Why? Most Important
(a) To prevent their reduction.
(b) To prevent their oxidation.
(c) To protect them from insects.
(d) To protect them from rodents.
Answer
Ans – (b) To prevent their oxidation.
7. 2AgBr(s) 2Ag(s) + Br2 (g)
the above reaction is used in:
(a) Welding
(b) Black & white photography
(c) White washing walls
(d) To prevent corrosion
Answer
Ans – (b) Black & white photography
8. Which of the following is exothermic reaction?
(a) Decomposition of calcium carbonate by heat
(b) Decomposition of silver chloride by sunlight
(c) Decomposition of vegetable matter into compost
(d) Decomposition of lead nitrate by heat
Answer
Ans – (c) Decomposition of vegetable matter into compost
9. Zn+CuSO4 → ZnSO4 + Cu is a :
(a) Combination reaction
(b) Decomposition reaction
(c) Double displacement reaction
(d) Displacement reaction
Answer
Ans – (d) Displacement reaction
10. Nitrogen gas prevent to chips in bags from a process of:
(A) Reduced
(B) Hydrogenation
(C) Displacement
(D) Oxidised
Answer
Ans – (D) Oxidised
11. In which of the following a balanced chemical equation with state symbols is correct?
(A) CO(g) + 2H2(g) CH3OH(g)
(B) CO(l) + 2H2(g) CH3OH(l)
(C) CO(g) + 2H2(g) CH3OH(l)
(D) CO(g)+ 2H2(l) CH3OH(l)
Answer
Ans – (C) CO(g) + 2H2(g) CH3OH(l)
HBSE Class 10 Science Chapter 2 – Acid, Bases and Salt MCQ Question Answer 2024
1. A solution showed pH 9. This solution is :
(a) Strongly acidic
(b) Strongly alkaline
(c) Weakly acidic
(d) Weakly alkaline
Answer
Ans – (d) Weakly alkaline
2. Acetic acid is found in :
(a) Sting of an Ant
(b) Nettel’s sting
(c) Orange
(d) Vinegar
Answer
Ans – (d) Vinegar
3. Citric acid is found in:
(a) Tomato
(b) Tamarind
(c) Lemon
(d) Sour milk
Answer
Ans – (c) Lemon
4. Tartaric acid is found in:
(a) Vinegar
(b) Nettle’s sting
(c) Tomato
(d) Tamarind
Answer
Ans – (d) Tamarind
5. Which one of the following medicine is used for treating Indigestion ?
(a) Antibiotic
(b) Analgesic
(c) Antacid
(d) Antiseptic
Answer
Ans – (c) Antacid
6. What is common name of NaHCO3 ? Most Important
(a) Zypsum
(b) Bleaching Powder
(c) Baking Soda
(d) Washing Soda
Answer
Ans – (c) Baking Soda
7. Which sodium compound is used for removal of permanent hardness of water?
(a) NaHCO3
(b) NaOH
(c) Na2SO4
(d) Na2CO3.10H2O
Answer
Ans – (d) Na2CO3.10H2O
8. Name the substance which on treatment with chlorine yields bleaching powder :
(a) Gypsum (CaSO4.2H2O)
(b) Slaked lime [Ca(OH)2]
(c) Quick lime (CaO)
(d) Lime stone (CaCO3)
Answer
Ans – (b) Slaked lime [Ca(OH)2]
9. Which of the following is chemical formula of bleaching powder?
(a) CaO
(b) CaOCl2
(c) Ca(OH)2
(d) CaCl2
Answer
Ans – (b) CaOCl2
10. Which following solution is acidic in nature?
(A) Lime juice
(B) Human blood.
(C) Slaked lime
(D) Antacid
Answer
Ans – (A) Lime juice
11. Which salt is used in the removal of permanent hardness of water?
(A) Sodium Hydroxide
(B) Sodium Carbonate
(C) Sodium Chloride
(D) Calcium Chloride
Answer
Ans – (B) Sodium Carbonate
12. The chemical formula of quick lime :
(A) CaO
(B) CaCO3
(C) Ca(OH)2
(D) CaOCl2
Answer
Ans – (A) CaO
13. Which of the following is not a salt?
(A) Baking Soda
(B) Washing Soda
(C) Vinegar
(D) Blue Vitriol
Answer
Ans – (C) Vinegar
14. What is chemical name of baking soda?
(A) Sodium Carbonate
(B) Sodium-hydrogen Carbonate
(C) Sodium Chloride
(D) Sodium Oxide
Answer
Ans – (B) Sodium-hydrogen Carbonate
HBSE Class 10 Science Chapter 3 – Metals and Non-Metals MCQ Question Answer 2024
1. What happens when dilute hydrochloric acid is added to iron fillings?
(a) Hydrogen gas and iron chloride are produced.
(b) Chlorine gas and iron hydroxide are produced.
(c) No reaction takes place.
(d) Iron salt and water are produced.
Answer
Ans – (a) Hydrogen gas and iron chloride are produced.
HBSE Class 10 Science Chapter 4 – Carbon and its Compound MCQ Question Answer 2024
1. Molecular formula of Methane is: Most Important
(a) CH4
(b) C2H6
(c) C3H8
(d) C4H10
Answer
Ans – (a) CH4
2. The carbon compounds which contain just carbon and hydrogen are called :
(a) Alcohal
(b) Hydrocarbons
(c) Aldehyde
(d) Ketone
Answer
Ans – (b) Hydrocarbons
3. Name the functional group present in ethanol :
(A) -OH
(B) -CHO
(C) -COOH
(D) – COR
Answer
Ans – (A) -OH
HBSE Class 10 Science Chapter 5 – Life Processes MCQ Question Answer 2024
1. The xylem in plants are responsible for: Most Important
(a) Transport of water
(b) Transport of food
(c) Transport of amino acids
(d) Transport of oxygen
Answer
Ans – (a) Transport of water
2. The breakdown of pyruvate to give carbondioxide, water and energy, takes place in :
(a) Cytoplasm
(b) Mitochondria
(c) Chloroplast
(d) Nucleus
Answer
Ans – (b) Mitochondria
3. In rice, potatoes and bread what is mainly found?
(A) Proteins
(B) Carbohydrates
(C) Fats
(D) Vitamins
Answer
Ans – (B) Carbohydrates
4. Birds are very closely related to:
(A) Amphibians
(B) Reptile
(C) Mammal
(D) None of these
Answer
Ans – (B) Reptile
HBSE Class 10 Science Chapter 6 – Control and Coordination MCQ Question Answer 2024
1. Which of the following is not an Endocrine gland?
(a) Thymus
(b) Parathyroid
(c) Adrenal
(d) None of these
Answer
Ans – (d) None of these
2. The centre associated with hunger is present in :
(a) Fore brain
(b) Mid brain
(c) Hind brain
(d) All of these
Answer
Ans – (a) Fore brain
3. Spinal cord is protected by: Most Important
(a) Vertebral column or back bone
(b) Cranium
(c) Ribs
(d) None of these
Answer
Ans – (a) Vertebral column or back bone
4. Which of the following hormone inhibit the growth? Most Important
(a) Auxin
(b) Cytokinin
(c) Gibberellin
(d) None of these
Answer
Ans – (d) None of these
5. Which of the following hormone promote the growth in plants ? Most Important
(a) Auxin
(b) Gibberellins
(c) Cytokinin
(d) All of these
Answer
Ans – (d) All of these
6. Which of the following gland secretes growth hormone? Most Important
(a) Pancreas
(b) Adrenal
(c) Pituitary
(d) Parathyroid
Answer
Ans – (c) Pituitary
7. Which of the following is not the part of hind brain?
(a) Pons
(b) Medulla
(c) Cerebellum
(d) None of these
Answer
Ans – (d) None of these
8. Which part of neuron acquires information from sensory organs?
(a) Cell body
(b) Dendrite
(c) Axon
(d) Nerve ending
Answer
Ans – (b) Dendrite
9. Which of the following gland secrete both hormones and enzymes ?
(a) Thyroid
(b) Parathyroid
(c) Adrenal
(d) Pancreas
Answer
Ans – (d) Pancreas
10. Control and co-ordination are the functions of the hormones and ______ in our body.
(a) Brain
(b) Relex arc
(c) Nervous system
(d) Chemical Co-ordination
Answer
Ans – (c) Nervous system
11. ‘Salivation’ is a type of process :
(a) Voluntary
(b) Involuntary
(c) Reflex Action
(d) Reflex Action and Involuntary Both
Answer
Ans – (d) Reflex Action and Involuntary Both
12. Wilting of leaves in plants is due to effect of which of the following?
(a) Cytokinin
(b) Auxin
(c) Gibberellin
(d) Abscissic Acid
Answer
Ans – (d) Abscissic Acid
13. Which of the following is future shoot?
(a) Radicle
(b) Plumule
(c) Cotyledon
(d) None of these
Answer
Ans – (b) Plumule
14. Which hormone inhibits the growth in plants?
(A) Auxin
(B) Cytokinins
(C) Gibberellins
(D) Abscisc acid
Answer
Ans – (D) Abscisc acid
15. Which gland secrete Insulin ?
(A) Liver
(B) Adrenal
(C) Pineal
(D) Pancreas
Answer
Ans – (D) Pancreas
HBSE Class 10 Science Chapter 7 – How do Organisms Reproduce MCQ Question Answer 2024
1. Sperms are produced by: Most Important
(a) Seminal vesicle
(b) Prostate gland
(c) Scrotum
(d) None of these
Answer
Ans – (d) None of these
2. In Bryophyllum, the buds are produced on :
(a) Root
(b) Stem
(c) Leaves
(d) All of these
Answer
Ans – (c) Leaves
3. Plasmodium divides by:
(a) Binary fission
(b) Multiple fission
(c) Both (a) & (b)
(d) Budding
Answer
Ans – (b) Multiple fission
4. In which of the following multiple fission occur?
(a) Amoeba
(b) Leishmania
(c) Both (a) & (b)
(d) Plasmodium
Answer
Ans – (d) Plasmodium
5. A sexual reproduction takes place through budding in:
(a) Amoeba
(b) Yeast
(c) Plasmodium
(d) Leishmania
Answer
Ans – (b) Yeast
6. In which of the following, the organisms produced are genetically dissimilar ?
(a) Sexual reproduction
(b) Asexual reproduction
(c) Vegetative propagation
(d) All of these
Answer
Ans – (a) Sexual reproduction
7. Copper T is placed in which of the following to prevent the pregnancy? Most Important
(a) Oviduct
(b) Vagina
(c) Cervix
(d) None of these
Answer
Ans – (d) None of these
8. Placenta is embedded in:
(a) Oviduct
(b) Vagina
(c) Cervix
(d) Uterus
Answer
Ans – (d) Uterus
9. Placenta helps in transferring of: Most Important
(a) Oxygen
(b) Glucose
(c) Waste substances
(d) All of these
Answer
Ans – (d) All of these
10. Cross pollination is achieved by which of the following agents?
(a) Wind
(b) Water
(c) Animals
(d) All of these
Answer
Ans – (d) All of these
11. The anther contains:
(a) Sepals
(b) Ovules
(c) Caspel
(d) Pollen grains
Answer
Ans – (d) Pollen grains
12. The growth of pollen tube towards ovule is an example of :
(a) Geotropism
(b) Chemotropism
(c) Phototropism
(d) Hydrotropism
Answer
Ans – (b) Chemotropism
13. Which of the following is a part of the male reproductive system in human beings?
(a) Ovary
(b) Uterus
(c) Vas deferens
(d) Fallopian tube
Answer
Ans – (c) Vas deferens
14. Where does fertilization take place in human being?
(A) Ovary
(B) Fallopian tube
(C) Uterus
(D) Vagina
Answer
Ans – (B) Fallopian tube
15. In Leishmania reproduction take place by :
(A) Binary fission
(B) Multiple fission
(C) Budding
(D) Spore formation
Answer
Ans – (A) Binary fission
16. Multiple fission take place in:
(A) Amoeba
(B) Paramecium
(C) Leishmania
(D) Plasmodium
Answer
Ans – (D) Plasmodium
17. Regeneration is found in:
(A) Hydra
(B) Planaria
(C) Both (A) and (B)
(D) None of these
Answer
Ans – (B) Planaria
Class 10 Science Chapter 8 – Heredity MCQ Question Answer 2024
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Class 10 Science Chapter 13 – Our Environment MCQ Question Answer 2024
1. Which of the following is not a natural Ecosystem?
(a) Forest
(b) Pond
(c) Lake
(d) Crop field
Answer
Ans – (d) Crop field
2. In which of the following CFCs is used?
(a) Refrigerator
(b) Fire extinguisher
(c) Both (a) & (b)
(d) None of these
Answer
Ans – (a) Refrigerator
3. Which of the following are environment-friendly practices ?
(a) Use of cloth bags
(b) Switching off unnecessary lights and fans
(c) Walking to school
(d) All of the above
Answer
Ans – (d) All of the above
4. Which of the following is group of only biodegradable substances ?
(a) Plastic, Leather, Wood
(b) Grass, Plastic, Banana Peel
(c) Wood, Grass, Banana Peel
(d) Leather, Glass, Banana Peel
Answer
Ans – (c) Wood, Grass, Banana Peel
5. Which of the following is a group of only non-biodegradable substances?
(a) Aluminium, Plastic, Leaves
(b) Plastic, Grass, Wood
(c) Aluminium Can, Plastic, Glass Bottle
(d) Leaves, Grass, Plastic
Answer
Ans – (c) Aluminium Can, Plastic, Glass Bottle
6. The organisms which break down complex organic substances into simple inorganic substances and mix them in the soil :
(a) Producers
(b) Decomposers
(c) Herbivores
(d) Carnivores
Answer
Ans – (b) Decomposers
7. The organisms which make organic compounds from inorganic substances using energy of sun and in the presence of chlorophyll are called:
(a) Decomposers
(b) Producers
(c) Herbivores
(d) Carnivore
Answer
Ans – (b) Producers
8. Secondary consumers come at which trophic level?
(a) First
(b) Second
(c) Third
(d) Fourth
Answer
Ans – (c) Third
9. The herbivores come at which trophic level?
(a) First
(b) Second
(c) Third
(d) Fourth
Answer
Ans – (b) Second
10. Which of the following come at third trophic level?
(a) Primary consumers
(b) Secondary consumers
(c) Tertiary consumers
(d) None of these
Answer
Ans – (b) Secondary consumers
11. Which of the following damages ozone layer?
(a) CFC
(b) CO2
(c) CO
(d) All of these
Answer
Ans – (a) CFC
12. Which of the following is non-biodegradable?
(a) Glass
(b) Grass
(c) Paper
(d) None of these
Answer
Ans – (a) Glass
13. Which of the following constitue a food chain ?
(a) Grass, Wheat and Mango
(b) Grass, Goat and Human
(c) Goat, Cow and Elephant
(d) Grass, Fish and Goat
Answer
Ans – (b) Grass, Goat and Human
14. Which is an artificial ecosystem?
(A) Forest
(B) Pond
(C) Lake
(D) Garden
Answer
Ans – (D) Garden
15. Which of the following belongs to first trophic level?
(A) Primary consumer
(B) Secondary consumer
(C) Tertiary consumer
(D) None of these
Answer
Ans – (A) Primary consumer
16. Which is a natural ecosystem?
(A) Garden
(B) Crop fields
(C) Both (A) and (B)
(D) Pond
Answer
Ans – (D) Pond
Physics MCQ Questions
Class 10 Science Chapter 9 – Light : Reflection and Refraction MCQ Question Answer 2024
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Class 10 Science Chapter 10 – The Human Eye and The Colourful World MCQ Question Answer 2024
1. Eye lens forms which type of image on Retina ?
(a) Real and erect
(b) Real and inverted
(c) Virtual and erect
(d) Virtual and inverted
Answer
Ans – (b) Real and inverted
2. Colour of clear sky is blue due to: Most Important
(a) Reflection
(b) Refraction
(c) Scattering
(d) Dispersion
Answer
Ans – (c) Scattering
3. The blue colour of sky is due to: Most Important
(a) Reflection of light
(b) Scattering of light
(c) Dispersion of light
(d) Refraction of light
Answer
Ans – (b) Scattering of light
4. Stars twinkle due to which phenomenon of light? Most Important
(a) Refraction
(b) Reflection
(c) Dispersion
(d) Scattering
Answer
Ans – (a) Refraction
5. Part of eye that controls the amount of light entering into the eye :
(a) Cornea
(b) Eyeball
(c) Iris
(d) Pupil
Answer
Ans – (d) Pupil
6. Colour of the sun at sunrise is red due to: Most Important
(a) Reflection
(b) Refraction
(c) Dispersion
(d) Scattering
Answer
Ans – (d) Scattering
7. Part of the eye that controls the size of the pupil is called as :
(a) Eyeball
(b) Cornea
(c) Iris
(d) Retina
Answer
Ans – (c) Iris
8. The colour of the sun at sunset is red due to: Most Important
(a) Reflection
(b) Dispersion
(c) Scattering
(d) Refraction
Answer
Ans – (c) Scattering
9. Thin membrane through which light enters the eye is called as :
(a) Eyeball
(b) Cornea
(c) Iris
(d) Pupil
Answer
Ans – (b) Cornea
10. In Hypermetropia, a person is not able to see:
(a) Distant objects
(b) Nearby objects
(c) Objects of different colors
(d) None of these
Answer
Ans – (b) Nearby objects
11. At the time of sunrise and sun-set, the cause of reddening of sun & its surroundings is due to the _________ of short wave length of light. Most Important
(a) Reflection
(b) Refraction
(c) Scattering
(d) None of these
Answer
Ans – (c) Scattering
12. A person who is unable to recognize different colours suffers from :
(a) Cataract
(b) Colour blindness
(c) Both (a) & (b)
(d) None of these
Answer
Ans – (b) Colour blindness
13. At the time of sunrise or sunset, the cause of reddening of Sun is due to the scattering of which rays of light? Most Important
(a) Red rays
(b) Blue rays
(c) Both (a) & (b)
(d) None of these
Answer
Ans – (b) Blue rays
14. The cloudiness or milky condition of the crystalline lens of a person shows which defect of the eye :
(a) Cataract
(b) Colour Blindness
(c) Both (a) & (b)
(d) None of these
Answer
Ans – (a) Cataract
15. Twinkling of stars is mainly due to: Most Important
(a) Reflection
(b) Refraction
(c) Scattering
(d) None of these
Answer
Ans – (b) Refraction
16. In Myopia, a person can not see:
(a) Nearby objects
(b) Distant objects
(c) Both (a) & (b)
(d) None of these
Answer
Ans – (b) Distant objects
17. The main reason behind the advanced sunrise and delayed sunset is the ________ of light.
(a) Refraction
(b) Reflection
(c) Both (a) & (b)
(d) None of these
Answer
Ans – (a) Refraction
18. The main reason behind the advanced sunrise and delayed sunset is ________ of light. Most Important
(a) Reflection
(b) Refraction
(c) Deviation
(d) Scattering
Answer
Ans – (b) Refraction
19. Which one of the following materials cannot be used to make a lens?
(a) Water
(b) Glass
(c) Plastic
(d) Clay
Answer
Ans – (d) Clay
20. The change in focal length of an eye lens is caused by the action of the :
(a) Pupil
(b) Retina
(c) Ciliary muscles
(d) Iris
Answer
Ans – (c) Ciliary muscles
21. The splitting of white light into seven colours is called:
(a) Reflection
(b) Refraction
(c) Dispersion
(d) None of these
Answer
Ans – (c) Dispersion
22. The human eye forms the image of an object at its : Most Important
(a) Cornea
(b) Retina
(c) Iris
(d) Pupil
Answer
Ans – (b) Retina
23. A student has difficulty to reading the blackboard while sitting in the last row. What could be the defect the child is suffering from?
(a) Myopia
(b) Hypermetropia
(c) Presbyopia
(d) All of these
Answer
Ans – (a) Myopia
24. The least distance of distinct vision for normal eye is :
(A) 2.5 cm
(B) 25 cm
(C) 25 m
(D) 2.5 m
Answer
Ans – (B) 25 cm
Class 10 Science Chapter 11 – Electricity MCQ Question Answer 2024
1. Which of the following term does not represent electrical power in circuit ? Most Important
(a) I2R
(b) I2/R
(c) VI
(d) V2/R
Answer
Ans – (b) I2/R
2. Which of the following do not represent electric power?
(a) P= VI
(b) P=VQ/t
(c) P=I2R
(d) P=I2Rt
Answer
Ans – (d) P=I2Rt
3. Which of the following terms does not represent electrical power in the circuit ?
(a) P=VI
(b) P=I2R
(c) P=IR2
(d) P= V2/R
Answer
Ans – (c) P=IR2
4. An electric bulb is rated 220 V and 200 W. When it is operated on 110 V, the power consumed will be :
(a) 75 W
(b) 100 W
(c) 150 W
(d) 50 W
Answer
Ans – (d) 50 W
5. If the length of copper wire is doubled keeping same area of cross- section, its resistivity will : Most Important
(a) Doubled
(b) Halved
(c) Remains same
(d) None of these
Answer
Ans – (c) Remains same
6. If the cross-sectional area of an Aluminium wire is doubled and length remaining same, its resistivity will : Most Important
(a) Remain same
(b) Doubled
(c) Halved
(d) None of these
Answer
Ans – (a) Remain same
7. Commercial unit of electrical energy one kilowatt hr. (1kWh) is equivalent to :
(a) 3.6 × 106 Watt second
(b) 3.6 x 106 J
(c) Both (a) and (b)
(d) None of these
Answer
Ans – (c) Both (a) and (b)
8. The resistance of a uniform metallic conductor depends on :
(a) Length of conductor
(b) Area of cross-section
(c) Nature of material
(d) All of the above
Answer
Ans – (d) All of the above
9. Unit of electric power Is:
(a) Ohm
(b) Watt
(c) Ohm-meter
(d) Volt
Answer
Ans – (b) Watt
10. SI unit of electric resistance is :
(A) Volt
(B) Ampere
(C) Ohm
(D) Coulomb
Answer
Ans – (C) Ohm
11. SI unit of electric current is:
(A) Ampere
(B) Newton
(C) Volt
(D) Joule
Answer
Ans – (A) Ampere
12. SI unit of electric charge is :
(A) Watt
(B) Ampere
(C) Coulomb
(D) Joule
Answer
Ans – (C) Coulomb
Class 10 Science Chapter 12 – Magnetic Effect of Electric Current MCQ Question Answer 2024
1. Which of the following can be used to measure the potential difference?
(a) Ammeter
(b) Voltmeter
(c) Both (a) & (b)
(d) None of these
Answer
Ans – (b) Voltmeter
2. SI unit of potential difference is :
(A) Volt
(B) Joule
(C) Watt
(D) Coulomb
Answer
Ans – (A) Volt