Total Number of Question/s - 4476

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  • 1. Matter in Our Surroundings - Quiz


    1. Matter has ___________
    a) mass but occupies no space
    b) no mass but occupies space
    c) mass and occupies space
    d) no mass and occupies no space

    2. Which of the following factors are responsible for change in state of solid carbon dioxide when kept exposed to air?
    (i) increases in pressure (ii) increases in temperature (iii) decrease in pressure (iv) decrease in temperature
    a) (i) and (ii)
    b) (i) and (iii)
    c) (ii) and (iii)
    d) (ii) and (iv)

  • 2. Is Matter Around Us Pure - Quiz


    1. To separate the various coloured pigments present in a substance which method is used?
    a) Evaporation
    b) sublimation
    c) Centrifugation
    d) Chromatography

    2. The material which is added to water during purification process at the water works so as to disinfect it is:
    a) potassium permanagante
    b) betadine
    c) chlorine
    d) potash alum

  • 3. Atoms and Molecules - Quiz


    1. Calculate the weight of 2.5 gram moles of oxygen.
    a) 70 g
    b) 90 g
    c) 80 g
    d) 50 g

    2. Calculate the weight of 2.0 moles of KClO3.
    a) 245 g
    b) 249 g
    c) 2 g
    d) 24 . 5 g

  • 4. Structure of the Atom - Quiz


    1. The radioactive element that is obtained from pitchblende is :
    a) uranium
    b) thoium
    c) radium
    d) plutonium

    2. The nucleus of an atom has atomic number 17 and mass number 37 There are 17 electrons outside the nucleus. Then the number of neutrons in it is :
    a) 20
    b) 21
    c) 17
    d) 37

  • 5. The Fundamental Unit Of Life - Quiz


    1. Which of the following organelles is found in plant cells buy not in animal cells?
    a) Mitochondria
    b) Ribosomes
    c) Endoplasmic reticulum
    d) None of these

    2. Name the stain which is commonly used to study plants cells
    a) safranin
    b) cotton blue
    c) methylene
    d) acetocarmine

  • 6. Tissues - Quiz


    1. Which of the following is living mechanical tissue?
    a) Parenchyma
    b) Sclerenchyma
    c) Collenchyma
    d) All of the above

    2. If the tip of sugarcane plant is removed from the field, even then it keeps on growing in length. It is due to the presence of
    a) cambium
    b) apical meristem
    c) lateral meristem
    d) intercalary meristem

  • 7. Diversity in Living Organisms - Quiz


    1. The class aves have the following features except that their:
    a) heart is four chamber
    b) skeleton is light
    c) forelimbs are modified into wings
    d) respiration is not through lungs

    2. Observe the pictures of cockroach and housefly. The common features that assign them the same phylum

    a) three pairs of legs
    b) antennae
    c) wings
    d) jointed legs

  • 8. Motion - Quiz


    1. A bus moving along a straingh line at 20 m/s undergoes an acceleration of 4 m/s2. After 2 seconds, its speed will be:
    a) 8 m/s
    b) 12 m/s
    c) 16 m/s
    d) 28 m/s

    2. A car covers the first half of the distance between two places at a speed of 40 km/hr and second half at 60 km/hr the average speed of the car is:
    a) 48 km/hr
    b) 100km/hr
    c) 50 km/hr
    d) 52 km/hr

  • 9. Force and Laws of Motion - Quiz


    1. When a hanging carpet is beaten with a stick, the dust particles start coming out of it. This phenomenon can be best explained by making use of:
    a) Newton third law of motion
    b) Newton law of gravitation
    c) Newton first law of motion
    d) Newton second law of motion

    2. Question.16: The action and reaction forces referred to in the third law
    a) Need not be equal in magnitude but must have the same direction.
    b) Must act on the same object.
    c) May act on different objects.
    d) Must act on different objects.

  • 10. Gravitation - Quiz


    1. If acceleration due to gravity on earth is 10 m/s2 then, the acceleration due to gravity on moon is ________.
    a) 10 m/s2
    b) 16.6 m/s2
    c) 1.66 m/s2
    d) 0.166 m/s2

    2. Suppose we have taken a stone to the center of the earth:
    a) Its weight become zero
    b) Its weight is unaffected
    c) Its weight increases as R decreases
    d) Its mass increases

  • 11. Work and Energy - Quiz


    1. Ns can be identified with :
    a) J
    b) Kg ms-1
    c) kg ms-2
    d) Nms

    2. Rectangulor components of force is applied to move a body . One of the components is 30 N. What should be the other component to obtain a resultant force of 50 N ?
    a) 30 N
    b) 40 N
    c) 50 N
    d) 90 N

  • 12. Sound - Quiz


    1. If you go on increasing the stretchingh force on a wire in a guitar its freqency :
    a) increases
    b) decreases
    c) remains unchanged
    d) none of the above

    2. A pendulam vibrate with a time period of 1 second. The sound produced by it is :
    a) supersonic
    b) audible
    c) infrasonic
    d) ultrasonic

  • 13. Why do we Fall ill - Quiz


    1. BCG vaccine is for the prevention of :
    a) polio
    b) tuberculosis
    c) Tetanus
    d) none of these

    2. Which one of the following is not a transmitted by mosquito?
    a) typhoid
    b) dengue
    c) malaria
    d) brain fever

  • 14. Natural Resources - Quiz


    1. Which of the following contribute to green house effect?
    a) methane(CH4)
    b) carbon dioxide(CO2)
    c) chloroflurocarbon(CFCs)
    d) all of these

    2. Green house effect is caused by
    a) green plants
    b) infrared rays
    c) UV-rays
    d) X-rays

  • 15. Improvement in Food Resources - Quiz


    1. Which of the following have been artificially selected?
    a) cabbage
    b) cauliflower
    c) broccoli
    d) all of these

    2. Growing different crops in the same field in a preplanned sucession is
    a) crop management
    b) crop rotation
    c) intercropping
    d) plant breeding