CBSE Class 12 Biotechnology Question Paper 2023 with Answer Key (February 16, Set 4 - 99)

CBSE CLASS XII Questions

• 1.

  Two statements are given below. They are Assertion (A) and Reason (R). Read both the statements carefully and choose the correct option. Assertion (A): In recent decades, the urban population of India has grown rapidly. Reason (R): In India, the workforce is shifting from farm-based to non-farm-based occupations.
  

  • Both (A) and (R) are true and (R) is the correct explanation of (A).
    
  • Both (A) and (R) are true, but (R) is not the correct explanation of (A).
    
  • (A) is true, but (R) is false.
    
  • (A) is false, but (R) is true.
    
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• 2.

  Suggest how a virus-free healthy plant can be obtained from a diseased sugarcane plant.

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• 3.

  Arrange the following rulers in chronological order and choose the correct option :
  I. Kanishka
  II. Mahapadma nda
  III. Samudragupta
  IV. Chandragupta Maurya
  

  • I, III, IV, II
    
  • II, IV, I, III
    
  • III, I, II, IV
    
  • IV, II, III, I
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• 4.

  Choose the correctly matched pair from the following : (Crop) - (Leading Producer State)

  • Maize - Bihar
    
  • Jute - West Bengal
    
  • Groundnut - Rajasthan
    
  • Sunflower - Punjab
    
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• 5.

  Two statements labelled as Assertion (A) and Reason (R) are given below. Read them carefully and choose the correct option :
  Assertion (A) : Most Asokan inscriptions were in the Prakrit language.
  Reason (R) : The use of Prakrit shows his attempt to spread the message amongst the common people.
  

  • Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explation of the Assertion (A).
    
  • Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explation 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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• 6.

  Which of the following equations is NOT a Linear Differential Equation?

  • \((1 + x^2) \, dy + 2xy \, dx = \cot x \, dx\)
    
  • \(y + \frac{d}{dx}(xy) = x(\sin x + \log x)\)
    
  • \(x(1 + y^2) \, dx - y(1 + x^2) \, dy = 0\)
    
  • \(y \, dx - (x + 3y^2) \, dy = 0\)
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