CBSE Class 10 Commerce Question Paper 2016 with Answer Key (March 22)

CBSE X Questions

• 1.

  Prove that \(2 + 3\sqrt{5}\) is an irrational number given that \(\sqrt{5}\) is an irrational number.
  

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• 2.

  (a) Why did many Europeans migrate to America after the sixteenth century? Explain. OR (b) How did trade and long distance travel contribute to the spread of diseases during the ancient period? Explain.

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• 3.

  A conical cavity of maximum volume is carved out from a wooden solid hemisphere of radius 10 cm. Curved surface area of the cavity carved out is (use \(\pi = 3.14\))
  

  

  • \(314 \sqrt{2}\) \(\text{cm}^{2}\)
    
  • \(314\) \(\text{cm}^{2}\)
    
  • \(\frac{3140}{3}\) \(\text{cm}^{2}\)
    
  • \(3140 \sqrt{2}\) \(\text{cm}^{2}\)
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• 4.

  State two differences between pollination and fertilization.

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• 5.

  For any natural number n, \( 5^n \) ends with the digit :
  

  • 0
    
  • 5
    
  • 3
    
  • 2
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• 6.

  Assertion : In human beings, the respiratory pigment is haemoglobin present in red blood cells.
  Reason (R) : Haemoglobin has a very high affinity for carbon dioxide.
  

  • Both, Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
    
  • Both, Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
    
  • Assertion (A) is true, but Reason (R) is false.
    
  • Assertion (A) is false, but Reason (R) is true.
    
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