Total Number of Question/s - 4476

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  • 1. Matter in Our Surroundings - Quiz


    1. When a crystal of potassium permanganate is placed at the bottom of water in a beaker, the water in the whole beaker turns purple on its own, even without stirring. This is an example of:
    a) distribution
    b) intrusion
    c) diffusion
    d) effusion

    2. Which one of the following set of phenomena would increase on raising the temperature?
    a) diffusion, evaporation, compression of gases
    b) evaporation, compression of gases, solubility
    c) evaporation, diffusion, expansion of gases
    d) evaporation, solubility, diffusion, compression of gases

  • 2. Is Matter Around Us Pure - Quiz


    1. Which of the following can be called a suspension?
    a) milk
    b) milk of magnesia
    c) salt solution
    d) vinegar

    2. Sol is:
    a) Gas dispersed in solid
    b) Solid dispersed in liquid
    c) Liquid dispersed in gas
    d) Gas dispersed in liquid

  • 3. Atoms and Molecules - Quiz


    1. More the energy is decreased during bond formation in a molecule, the _______ is the bond between the atoms.
    a) weaker
    b) more polar
    c) stronger
    d) none of these

    2. The atomic number of an element E is 16. The number of electrons in its E2- will be:
    a) 16
    b) 18
    c) 15
    d) 14

  • 4. Structure of the Atom - Quiz


    1. Give the number of electrons present in the outermost shell of atoms of each of the following elements.
    (i) Helium (ii) Magnesium (iii) Sulphur
    a) i-2, ii-3, iii-4
    b) i-1, ii- 4, iii-6
    c) i-2,ii-2, iii-6
    d) i-3, ii-4, iii-5

    2. The decreases in the attractive force exerted by the nucleus on the valence shell electrons is called :
    a) shielding effect
    b) Stark effect
    c) Zeeman effect
    d) none of these

  • 5. The Fundamental Unit Of Life - Quiz


    1. First living cells were observed by
    a) A.V. Leeuwenhoek
    b) Robert Hooke
    c) R. Virchow
    d) Robert Brown

    2. Which structure includes all of the other structure?
    a) Genes
    b) Chromosomes
    c) Nucleus
    d) Nucleolus

  • 6. Tissues - Quiz


    1. Parenchyma; Simple; Phloem; ______________
    a) simple
    b) collenchyma
    c) complex
    d) xylem

    2. Ligaments and tendons are formed of
    a) epithelial tissue
    b) muscular tissue
    c) cartilage
    d) connective tissue

  • 7. Diversity in Living Organisms - Quiz


    1. Which set of answers classifies the given organisms correctly?

    a) (i) cartilaginous fish (ii) annelida (iii) bony fish (iv) arthropoda
    b) (i) cartilaginous fish (ii) annelida (iii) arthropoda (iv) bony fish
    c) (i) bony fish (ii) arthropoda (iii) annelida (iv) cartilaginous fish
    d) (i) bony fish (ii) annelida (ii) arthropoda (iv) cartilaginous fish

    2. In the latin name salix nigra, the first name is the __________and second is the __________ .
    a) genus, species
    b) family, genus
    c) common name, scientific name
    d) species genus

  • 8. Motion - Quiz


    1. A sprinter is running along the circumference of abig sports stadium with constant speed. Which of the following do you think is changing in this case ?
    a) magnitude of acceleration being produced
    b) distance covered by the sprinter per second
    c) direction in which the sprinter is running
    d) centripetal force acting on the sprinter

    2. A particle in uniform acceleration in a straight line has a speed of v m/s at position x meters is given by v √(25-16x)=. The acceleration of the particle is:
    a) -8 m/s2
    b) -3 m/s2
    c) 3 m/s2
    d) 8 m/s2

  • 9. Force and Laws of Motion - Quiz


    1. Which of the following are vector quantities?
    a) Force
    b) Momentum
    c) Velocity
    d) All of these

    2. The momentum of a toy bus of 0.01 kg moving with a velocity of 5 m/s is
    a) 0.5 kg m/s
    b) 0.005 kg m/s
    c) 0.005 N s
    d) 0.05 kg m/s

  • 10. Gravitation - Quiz


    1. The gravitational force of attraction between two objects is X. Keeping the masses of the objects unchanged, if the distance between the objects is halved, then the magnitude of gravitational force between them will become:
    a) c/4
    b) x/2
    c) 2x
    d) 4x

    2. A rock is brought from the surface of the moon. Then:
    a) Its weight will change but not mass
    b) Its mass will change
    c) Both mass and weight will change
    d) Both mass and weight remains same

  • 11. Work and Energy - Quiz


    1. Which of the following does not possess the abolity to do work not because of motion?
    a) a sparrow flying in the sky
    b) a sparrow moving slowly on the ground
    c) a sparrow in the nest on a tree
    d) a squirrel going up a tree

    2. By what factor does the kinetic nnergy of a particle increase if the velocity is increased by a factor of three ?
    a) 6
    b) 7
    c) 8
    d) 9

  • 12. Sound - Quiz


    1. The time period of a sound wave travelling in a medium is T . At a given instance (t = 0 ) a particular region in the medium has minimum density. The density of this region will be minimum again at :
    a) t = T
    b) t = T/2
    c) t = T/3
    d) t = T/4

    2. In SONAR we use:
    a) ultrasonic waves
    b) infrasonic waves
    c) radio waves
    d) audible sound waves

  • 13. Why do we Fall ill - Quiz


    1. Which of the following causes amoebic dysentery ?
    a) Entamoeba histolytica
    b) Giardia lamblia
    c) Escherichia coli
    d) Entamoeba coli

    2. Infectious disease spread through
    a) vectors
    b) water
    c) sexual
    d) all of these

  • 14. Natural Resources - Quiz


    1. Which of the following lists contain al the ingredients and products of photosynthesis ?
    a) Carbon dioxide, water, oxygen and carbohydrate
    b) Phosphorous, nitrogen, water and carbon dioxide and oxygen
    c) Carbohydrates, water, nitrogen and carbon dioxide
    d) Carbon dioxide, water, ozone and carbohydrates

    2. Choose the correct sequences
    a) CO2 in atmosphere → decomposers → organic carbon in animals → organ carbon in plants
    b) CO2 in atmosphere → organic carbon in plants → organic in animals → inorganic carbon in soil
    c) inorganic carbonates in water → organic carbon in plants → organic carbon in animals → scavengers
    d) organic carbon in animals → decomposers → CO2 in atmosphere → organic carbon in plants

  • 15. Improvement in Food Resources - Quiz


    1. Milk does not provide
    a) vitamin A and D
    b) carbohydrates, proteins and fats
    c) minerals such as phosphorous and calcium
    d) iron

    2. Polutary fowl are susceptible to the following pathogens
    a) viruses
    b) bacteria
    c) fungi
    d) all of the above