CBSE Class 10 Science Set 3 - (31/3/3) Question Paper 2026 with Solution PDF

CBSE X Questions

• 1.

  What is the function of diaphragm in human respiratory system ? Where is it present in human body ?
  

  View Solution

  ---

• 2.

  The reasons for excessive generation of wastes are:
   (i) Use and throw policy. 
  (ii) Increased availability of packaged food. 
  (iii) Increased construction wastes. 
  (iv) Non-sorting of dry and wet wastes

  • (i), (iii) and (iv)
    
  • (i), (ii) and (iii)
    
  • (i), (ii), (iii) and (iv)
    
  • (ii), (iii) and (iv)
    
  View Solution

  ---

• 3.

  The natural sources of oxalic acid, lactic acid and methanoic acid respectively are:

  • tomato, curd, ant-sting
    
  • tomato, orange, nettle-sting
    
  • orange, milk, ant-sting
    
  • orange, sour milk, nettle-sting
    
  View Solution

  ---

• 4.

  Identify the type of reproduction shown in the diagram given below: 
  

  • Budding
    
  • Fragmentation
    
  • Spore Formation
    
  • Binary Fission
    
  View Solution

  ---

• 5.

  When an element 'X' reacts with water, it starts floating. Identify the element 'X':

  • Potassium
    
  • Calcium
    
  • Sodium
    
  • Iron
    
  View Solution

  ---

• 6.

  Draw a neat diagram to show germination of pollen on the female reproductive part of the flower. Name and label only the following parts:
  (a) The part that receives the pollen grain.
  (b) The structure that carries the male germ cell to reach the female germ cell.

  View Solution