Science Class 10th Model Test Paper: Multiple Choice Questions
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Questions and Answers

When lead nitrate and potassium iodide are mixed, what yellow precipitate is formed?

  • Lead oxide
  • Potassium nitrate
  • Lead iodide (correct)
  • Potassium oxide

    • What is the process responsible for the strong smell from mint after some days?

  • Displacement
  • Corrosion
  • Oxidation (correct)
  • Reduction

    • What is the pH of a neutral solution?

  • Less than 7
  • 0
  • Greater than 7
  • 7 (correct)

    • What is the ability of metals to be drawn into thin wires known as?

    <p>Ductility</p> Signup and view all the answers

    In which of the following is tartaric acid found?

    <p>Vinegar</p> Signup and view all the answers

    During the electrolytic refining of copper, what is the cathode made of?

    <p>Pure copper</p> Signup and view all the answers

    Which of the following is an involuntary action?

    <p>Chewing</p> Signup and view all the answers

    Which disease is caused due to sexual contact?

    <p>Cholera</p> Signup and view all the answers

    What is the human called that has XY chromosomes?

    <p>Female</p> Signup and view all the answers

    Which material cannot be used to make a lens?

    <p>Clay</p> Signup and view all the answers

    What is the mode of reproduction in Spirogyra?

    <p>Regeneration</p> Signup and view all the answers

    What color would the sky appear when seen from the moon?

    <p>Black</p> Signup and view all the answers

    What instrument is used to protect electric circuits from short-circuiting and overloading?

    Signup and view all the answers

    Which metal is used in making the filament of an electric bulb?

    <p>Copper</p> Signup and view all the answers

    Which of the following is non-biodegradable?

    <p>Glass</p> Signup and view all the answers

    What is the molecular formula of ozone?

    <p>O5</p> Signup and view all the answers

    Match the following with their correct terms:

    <p>Reduction of mint smell = Oxidation Yellow precipitate from lead nitrate and potassium iodide = Lead iodide pH of a neutral solution = 7 Ability of metals to be drawn into thin wires = Ductility</p> Signup and view all the answers

    Match the following with their correct terms:

    <p>Tartaric acid found in = Vinegar ATP full form = Adenosine Tri-Phosphate Release of water from guard cells = Guard cell get open Mode of excretion in plants = Transpiration</p> Signup and view all the answers

    Match the following with their correct terms:

    <p>Part of the brain that can be divided into two hemispheres = Fore brain Electrolytic refining of copper cathode material = Pure copper Mint smell due to = Oxidation ATP molecular formula = Adenosine Tri-Phosphate</p> Signup and view all the answers

    Match the following diseases with their mode of transmission:

    <p>AIDS = Sexual contact Cholera = Contaminated food or water Elephant’s Foot = Radiation exposure Tuberculosis = Airborne droplets</p> Signup and view all the answers

    Match the following materials with their primary usage in optics:

    <p>Water = Focusing lenses Glass = Making lenses and prisms Plastic = Manufacturing eyeglasses Clay = Optical instruments</p> Signup and view all the answers

    Match the following human body parts with their respective functions:

    <p>Ammeter = Measuring electric current Unit of Resistance = Measuring electrical resistance Near Sightedness = Correcting vision Mirror Formula = Calculating image distance</p> Signup and view all the answers

    Match the following scientific phenomena with their correct explanations:

    <p>Drinking Alcohol = Ethanol Concave Lens = Diverging light 1/V+1/U=1/F = Mirror formula Electric Current = Flow of electric charge</p> Signup and view all the answers

    Why should a magnesium ribbon be rubbed before burning in the air

    Signup and view all the answers

    Study Notes

    Chemical Reactions

    • When lead nitrate and potassium iodide are mixed, a yellow precipitate of lead iodide is formed.

    Biology

    • The strong smell from mint after some days is due to the process of fermentation.

    Acids and Bases

    • The pH of a neutral solution is 7.

    Metals

    • The ability of metals to be drawn into thin wires is known as ductility.

    Food Chemistry

    • Tartaric acid is found in grapes.

    Electrolysis

    • During the electrolytic refining of copper, the cathode is made of pure copper.

    Human Physiology

    • An involuntary action is a reflex action.

    Sexually Transmitted Diseases

    • Sexually transmitted diseases (STDs) are caused by sexual contact.

    Human Genetics

    • A human with XY chromosomes is a male.

    Optics

    • Wood cannot be used to make a lens.

    Botany

    • The mode of reproduction in Spirogyra is fragmentation.

    Astronomy

    • The sky would appear black when seen from the moon.

    Electrical Circuits

    • A fuse is an instrument used to protect electric circuits from short-circuiting and overloading.

    Electric Bulbs

    • Tungsten is used in making the filament of an electric bulb.

    Environmental Science

    • Plastic is a non-biodegradable material.

    Chemistry

    • The molecular formula of ozone is O₃.

    Matching Terms

    • Various matches:
      • Lead iodide: yellow precipitate
      • Fermentation: strong smell from mint
      • pH 7: neutral solution
      • Ductility: ability to be drawn into thin wires
      • Grapes: tartaric acid
      • Pure copper: cathode in electrolytic refining
      • Reflex action: involuntary action
      • Sexual contact: STDs
      • XY chromosomes: male human
      • Wood: cannot be used to make a lens
      • Fragmentation: mode of reproduction in Spirogyra
      • Black: sky color from the moon
      • Fuse: protects electric circuits
      • Tungsten: filament material in electric bulb
      • Plastic: non-biodegradable
      • O₃: molecular formula of ozone

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    Description

    Test your knowledge with this model test paper for Science Class 10th. Answer multiple choice questions covering topics such as chemical reactions, pH, and more.

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