Class/Course - Class X

Subject - Science

Total Number of Question/s - 4224


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  • 1. Chemical Reactions and Equations - Quiz

    1. Consider the reaction:
    KBr(aq) + AgNO3(aq) → KNO3(aq) + AgBr(s)
    This is an example of:
    a) decomposition reaction
    b) combination reaction
    c) double displacement reaction
    d) displacement reaction

    2. You are given the following chemical equation:
    Mg(s) + CuO(s) → MgO (s) + Cu(s)
    This equation represents:
    a) decomposition reacction as well as displacemnt reaction
    b) combination reaction as well as double displacement reaction
    c) redox reaction as well as displacement reaction
    d) double displacement reaction as well as redox reaction

  • 2. Acids, Bases and Salts - Quiz

    1. Which of the following is dibasic acid? 
    (a) HCl 
    (b) H3PO4 
    (c) HNO3 
    (d) H2SO4

    a) only c
    b) only d
    c) a-c
    d) d-a

    2. The salt which will give an acidic solution on dissolving in water is:
    a) KCl
    b) NH4Cl
    c) Na2CO3
    d) CH3COONa

  • 3. Metals and Non-metals - Quiz

    1. The two metals which can be extracted just by heating their sulphides in air are:
    a) sodium and copper
    b) copper and aluminium
    c) potassium and zinc
    d) mercury and copper

    2. Out of the following oxides, the amphoteric oxide is:
    a) Fe2O3
    b) Al2O3
    c) P2O5
    d) N2O

  • 4. Carbon and its Compounds - Quiz

    1. The organic compound prepared by Wohler from an inorganic compound called ammonium cyanate was:
    a) glucose
    b) urea
    c) uric acid
    d) vinegar

    2. While cooking, if the bottom of the utensil is getting blackened on the outside, it means that:
    a) the food is not cooked completely.
    b) the fuel is not burning completely.
    c) the fuel is wet.
    d) the fuel is burning completely.

  • 5. Periodic Classification of Elements - Quiz

    1. The scientist who introduced law of triad is:
    a) Dobereiner
    b) Lavoisier
    c) Newland
    d) Mendeleev

    2. The ores of an element (X) generally found in earth crust and its oxide give strong alkalis . Then (X) belong to :
    a) I group
    b) II group
    c) III group
    d) IV group

  • 6. Life Processes - Quiz

    1. Which of the following are the features of photosynthesis?
    a) Production of oxygen
    b) Production of carbohydrates
    c) Conversion of light energy into chemical energy
    d) All the above

    2. During repiration, the exchange of gases takes place in :
    a) bronchi
    b) alveoli
    c) bronchioles
    d) trachea

  • 7. Control and Coordination - Quiz

    1. The underactive endocrine gland which causes goitre is:
    a) pancreas
    b) thyroid
    c) adrenal
    d) pituitary

    2. Dandelion flowers open the petals in bright light during the daytime but close the petal in dark at night . This response of dandelion flowers to light is called:
    a) phototropism
    b) thigmonasty
    c) chemotropism
    d) photonasty

  • 8. How do Organisms Reproduce? - Quiz

    1. A tiny animal having tentacles which reproduces by growing buds on the side of its body is:
    a) planaria
    b) yeast
    c) amoeba
    d) hydra

    2. Spore formation is the most common asexual method reproduction in:
    a) protozoa
    b) tubers
    c) fungi
    d) algae

  • 9. Heredity and Evolution - Quiz

    1. The sex of a child is determined by which of the following?
    a) the length of the mother`s pregenancy
    b) the length of time between ovulation and population
    c) the presence of an X chromosome in an ovum
    d) the presence of Y chromosome in a sperm

    2. Which statement about natural selection is false ?
    a) Natural selection can lead to adaptation
    b) Natural selection causes accounts for the resemblance between parent and offspring
    c) Natural selection causes in a population to change
    d) Natural is involved in the evolution of antibiotic resistance

  • 10. Light - Reflection and Refraction - Quiz

    1. Linear magnification produced by a concave mirror may be:
    a) less than 1 or equal to 1
    b) more than 1 or equal to 1
    c) less than 1, more than 1 or equal to 1
    d) less than 1 or more than 1

    2. Refractive indices of water, sulphuric acid, glass and carbon disulphide are 1.33, 1.43, 1.53 and 1.63 respectively. The light travels slowest in:
    a) sulphuric acid
    b) glass
    c) water
    d) carbon disulphide

  • 11. Human Eye and Colourful World - Quiz

    1. The dispersive power of a prism :
    a) is same for all types of colours
    b) is independent of refracting angle
    c) changes with types of colours
    d) bith B and C

    2. Which of the following prisms can be used for studying ultraviolet light ?
    a) Combination of flint and crown
    b) Crown glass prism
    c) Flint glass prism
    d) Quartz prism

  • 12. Electricity - Quiz

    1. No current flows between two charged bodies if they have same:
    a) Capacity
    b) Charge
    c) Potential
    d) None

    2. The unit for expressing electric power is:
    a) volt
    b) joule
    c) coulomb
    d) watt

  • 13. Magnetic Effects of Electric Current - Quiz

    1. 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

    2. The magnetic field due to electric current in a conductor is _______.
    a) in the center of the conductor
    b) circular around the conductor
    c) in the direction of electric current
    d) in the direction opposite to electric current

  • 14. Sources of Energy - Quiz

    1. Solar cells are made of:
    a) conductors
    b) insulators
    c) semi-conductors
    d) super-conductors

    2. A blanket of .................. does not allow the harmful ultraviolet radiations from the sun.
    a) O3
    b) CO2
    c) NO2
    d) F2

  • 15. Our Environment - Quiz

    1. Which pollutant released into the air during refrigeration and airconditioning is the greatest contributor to the depletion of ozone layer?
    a) BHC
    b) DDT
    c) CFC
    d) UNEP

    2. SPM denotes
    a) suspended particulate matter
    b) solid particulate matter
    c) soft particulate matter
    d) none of above

  • 16. Management of Natural Resources - Quiz

    1. Which of the following community in Rajasthan has been a religious tenet of conservation of forest and wild life?
    a) Bishnoi
    b) Jain
    c) Jaiswal
    d) Aggarwal

    2. One of the following does not contribute in producing acis rain. This one is:
    a) sulphur dioxide
    b) carbon dioxide
    c) nitrogen dioxide
    d) carbon monoxide