CBSE Class 12 Biology Set 1 Question Paper 2020 With Solutions

CBSE CLASS XII Questions

• 1.

  The rate for the following reaction is given by: \[ A + B \rightarrow C, \quad \text{Rate} = k[A][B]^2 \] How is the rate affected if we double the concentration of B?

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• 2.

  In an economy, the currency held by the public, Net Demand Deposits with Commercial Banks and Net Time Deposits with Commercial Banks stand at ₹ 1,42,000 crore, ₹ 22,000 crore and ₹ 86,000 crore respectively. The value of Money Supply (M1) would be ₹ _______ crore.

  • 2,50,000
    
  • 86,000
    
  • 1,64,000
    
  • 1,42,000
    
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• 3.

  Hari, Murari and Abhi were partners in a firm sharing profits and losses in the ratio of 8 : 7 : 4. Murari retired from the firm on 31st March, 2025. Hari and Abhi decided to share profits in the future in the ratio of 2 : 1. The gaining ratio of Hari and Abhi was:

  • 1 : 2
    
  • 8 : 7
    
  • 2 : 1
    
  • 7 : 4
    
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• 4.

  From the following information obtained from the books of 'Ajanta Ltd.', calculate Cash from Operations: Net Profit for the year ended 31st March, 2025 after charging depreciation of ₹ 80,000 and after writing off goodwill ₹ 10,500 was ₹ 4,90,000. Additional Information:

  

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• 5.

  There are two statements Assertion (A) and Reason (R):
  Assertion (A): At the time of admission of a new partner in a partnership firm, the newly admitted partner brings an agreed amount of capital either in cash or in kind.
  Reason (R): On admission, the new partner gets the right to acquire share in the assets and profits of the partnership firm.
  Choose the correct option from the following:

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

  Rohan failed an important exam. Instead of accepting that he didn't prepare well, he insists that the teacher was biased and the exam was unfair. Which defence mechanism is Rohan using?
  

  • Repression
    
  • Projection
    
  • Rationalization
    
  • Denial
    
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