KVPY (Quiz 8)

5 Questions | Total Attempts: 123

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KVPY  (Quiz 8)

Questions and Answers
  • 1. 
    There are 20 unit cubes all o whose faces are white, &44 unit cubes all of whose faces are red. they are put togethr to form a bigger cube (4*4*4). What is the minimum number of white faces visible on this larger cube?
    • A. 

      20

    • B. 

      14

    • C. 

      12

    • D. 

      8

  • 2. 
    The number of 2-digit numbers n such thet 3 divides n - 2 and 5 divides n - 3 is
    • A. 

      5

    • B. 

      6

    • C. 

      7

    • D. 

      10

  • 3. 
    An element which reacts both with acide and bases to produce a salt and hydrogen gas is
    • A. 

      Zn

    • B. 

      Mg

    • C. 

      Li

    • D. 

      S

  • 4. 
    On a normal sunny day, rate of photosynthesis (per unit time) is maximum during:
    • A. 

      Early morning

    • B. 

      Between late morning to before noon

    • C. 

      Midday

    • D. 

      Late evening

  • 5. 
    In a wound, 'pus' is a
    • A. 

      A mixture of destroyed germs, killed leucocytes and damaged tissue cells

    • B. 

      Concentrated blood plasma

    • C. 

      Thick mucus secretion

    • D. 

      Concentrated secretion of the sebaceous gland

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