Class 10 Science Important MCQ Question Answer Chapter-wise Solution with PDF – HBSE

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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)   \displaystyle \xrightarrow{{heat}} 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  \displaystyle \to  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)  \displaystyle \xrightarrow{{SunLight}}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)  \displaystyle \to CH3OH(g)
(B) CO(l) + 2H2(g)  \displaystyle \to CH3OH(l)
(C) CO(g) + 2H2(g)  \displaystyle \xrightarrow{{340atm}} CH3OH(l)
(D) CO(g)+ 2H2(l)  \displaystyle \xrightarrow{{340ºC}} CH3OH(l)

Answer

Ans – (C) CO(g) + 2H2(g)  \displaystyle \xrightarrow{{340atm}} 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


No Questions Yet Came in exam


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


Not Came any MCQ Question in Exam Yet


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


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