CBSE Class 10 Science Set 2 - (31/3/2) Question Paper 2026 with Solution PDF

CBSE X Questions

• 1.

  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
    
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• 2.

  Which of the plant hormones are responsible for the following processes? Promote cell division Inhibition of growth Detection of light Wilting of leaves

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• 3.

  When a human egg is fertilized by a sperm having ‘Y’ chromosome, the zygote has the following combination of chromosomes:

  • 44 + XX
    
  • 22 + XX
    
  • 44 + XY
    
  • 22 + XY
    
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• 4.

  Briefly mention the steps in double-circulation through human heart.

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• 5.

  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.

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• 6.

  Which structure in a leaf is mainly responsible for gaseous exchange?

  • Xylem
    
  • Stomata
    
  • Phloem
    
  • Cuticle
    
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