Class/Course - Class X

Subject - Science

Total Number of Question/s - 4224


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  • 1. Chemical Reactions and Equations - Quiz

    1. Substances which take part in reactions is:
    a) Reactants
    b) Products
    c) Mixture
    d) Compounds

    2. It is acceptable to balance an equation by changing the formula of one of the reactants or products.
    a) True
    b) False

  • 2. Acids, Bases and Salts - Quiz

    1. Calcium sulphate hemihydrates is commonly known as:
    a) Plaster of Paris
    b) Ferrous sulphate
    c) Gypsum
    d) All of these

    2. The salt whose aqueous solution will have no effect on either red litmus or blue litmus is
    a) potassium sulphate
    b) sodium carbonate
    c) ammonium sulphate
    d) sodium acetate

  • 3. Metals and Non-metals - Quiz

    1. The gas evolved and the soluble substance formed when aluminium is dissolved in an alkali:
    a) H2 and Al
    b) H2 and Na2AlO3
    c) H2 and Al2O3
    d) H2 and NaAlO2

    2. Oil of vitriol is:
    a) H2S2O8
    b) H2S2O7
    c) H2SO4
    d) H2SO3

  • 4. Carbon and its Compounds - Quiz

    1. The hydrogen which has alternate single and double bonds arranged in the form of a ring is:
    a) cyclobutane
    b) benzene
    c) butene
    d) hexene

    2. In the dehydrogenation of alcohols the catalyst used is :
    a) reduced copper
    b) aluminium powder
    c) copper oxide
    d) alumina

  • 5. Periodic Classification of Elements - Quiz

    1. The energy given out when an electron is added to an atom is :
    a) electronegativity
    b) electron affinity
    c) electropositivity
    d) ionization ptential

    2. Which of the following element would lose an electron easily?
    a) Mg
    b) Na
    c) K
    d) Ca

  • 6. Life Processes - Quiz

    1. Lack of oxygen in muscles often leads to cramps in the legs of sprinters. This is due to conversion of pyruvate to:
    a) ethanol
    b) carbon dioxide
    c) acetic acid
    d) lactic acid

    2. Which one of the following does not have valves?
    a) heart
    b) arteries
    c) capillaries
    d) veins

  • 7. Control and Coordination - Quiz

    1. The opening and closing of flower represents a kind of:
    a) Tropic movement
    b) Nastic movement
    c) Nutation
    d) Autonomic movement

    2. Which of the following plants moves its leaves in response to touch?
    a) Desmodium gyrans
    b) Mimosa pudica
    c) Brassica nigra
    d) Grass leaf

  • 8. How do Organisms Reproduce? - Quiz

    1. An animal which reproduces by the process of budding is:
    a) plasmodium
    b) yeast
    c) hydra
    d) planaria

    2. At which stage of development the human embryo is implanted in the uterus
    a) zygote
    b) blastocyst
    c) morula
    d) gastrula

  • 9. Heredity and Evolution - Quiz

    1. Evolution means
    a) History of the race
    b) Development of the race
    c) Progressive development of the race
    d) History and development of the race with variations

    2. For his experiments on heredity, Mendel used:
    a) papaya plants
    b) potato plants
    c) pea plants
    d) pear plants

  • 10. Light - Reflection and Refraction - Quiz

    1. To minimize spherical aberration two lenses of focal length f1 and f2 should be placed with a distance of separation equal to :
    a) f- f2
    b) f- f2/2
    c) f1 / f2
    d) f/ f1

    2. In a convex spherical mirror, reflection of light takes place at;
    a) a flat surface
    b) a bent-in surface
    c) a bulging-out surface
    d) an uneven surface

  • 11. Human Eye and Colourful World - Quiz

    1. The defect of vision which cannot be corrected by using spectacles is:
    a) myopia
    b) presbypia
    c) cataract
    d) hypermetropia

    2. Soap bubbles appears colored due to the phenomenon of:
    a) Diffraction
    b) Reflection
    c) Interference
    d) Dispersions

  • 12. Electricity - Quiz

    1. A car headlight bulb working on a 12 V car battery draws a current of 0.5 A. The resistance of the light bulb is:
    a) 0.5 Ω
    b) 6 Ω
    c) 12Ω
    d) 24 Ω

    2. The heating elements of an electric heater should be made with material which has:
    a) High specific resistance and low melting point
    b) High specific resistance and high melting point
    c) Low specific resistance and low melting point
    d) Low specific resistance and high melting point

  • 13. Magnetic Effects of Electric Current - Quiz

    1. An induced current is produced when a magnet is moved into a coil. The magnitude of induced current does not depend on:
    a) the speed with which the magnet is moved
    b) the number of turns of the coil
    c) the resistivity of the wire of the coil
    d) the strength of the magnet

    2. A plotting compass is placed near the south pole of a bar magnet. The pointer of plotting compass because
    a) point away from the south pole
    b) point parallel to the south pole
    c) point towards the south pole
    d) point at right angles to the south pole

  • 14. Sources of Energy - Quiz

    1. Coke is more valuable when used:
    a) as a fuel for industrial boilers
    b) as an oxidising agent
    c) as a reducing agent
    d) as a fuel in domestic ovens

    2. Atom bomb is based on the principle of:
    a) Electrolysis
    b) Fusion
    c) Fission
    d) Ionization

  • 15. Our Environment - Quiz

    1. Which of the following is an artificial ecosystem?
    a) pond
    b) crop field
    c) lake
    d) forest

    2. Terracing is effective method of soil conservation in :
    a) desert areas
    b) plain areas
    c) hill areas
    d) none of these

  • 16. Management of Natural Resources - Quiz

    1. Which of the following are to be managed for sustainable development?
    a) Resources
    b) Crops
    c) Forest
    d) Industries

    2. Which of the following is a green house gas?
    a) Carbon dioxide
    b) Sulphur dioxide
    c) Nitrogen dioxide
    d) Carbon monoxide