CBSE Class 12 Computer Science Question Paper 2009 Code 91/1

CBSE CLASS XII Questions

• 1.

  (i) Why do Zr and Hf exhibit similar properties ?

  (ii) "\( E^\circ \) for \( \mathrm{Mn^{3+}/Mn^{2+}} \) couple is more positive than that for \( \mathrm{Fe^{3+}/Fe^{2+}} \)." Justify the statement.

  [Atomic number : Mn = 25, Fe = 26]

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• 2.

  Which of the following curve represents the first order reaction?
  

  

  • A
  • B
  • C
  • D
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• 3.

  Draw the plot of potential energy of a pair of nucleons as a function of their separation. Write two important conclusions that can be drawn from this plot.

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• 4.

  Anuj, Divij and Shilpa were partners in a firm sharing profits and losses in the ratio of 2:1:2. Their Balance Sheet as at 31st March, 2023 was as follows:

  Balance Sheet of Anuj, Divij and Shilpa as at 31st March, 2023

  Liabilities	Amount (Rs)	Assets	Amount (Rs)
  Capitals:		Land & Building	8,00,000
  Anuj 3,00,000		Furniture	2,40,000
  Divij 4,00,000		Stock	1,20,000
  Shilpa 5,00,000	12,00,000	Debtors	1,70,000
  Bills Payable	60,000	Cash	50,000
  Creditors	1,20,000
  	13,80,000		13,80,000

  Anuj retired on the above date on the following terms:

  (i) Anuj's share of goodwill was valued at Rs 90,000 and the same was to be treated without opening goodwill account.

  (ii) Revaluation of assets and reassessment of liabilities resulted in a gain of Rs 25,000.

  (iii) Amount due to Anuj was transferred to his loan account, to be paid in two equal yearly instalments plus interest @ 12% p.a. on the unpaid balance starting from 31st March, 2024.

  Prepare Partners' Capital Accounts and Anuj's Loan Account till it is fully discharged.

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• 5.

  John, Honey and Racob were partners in a firm sharing profits and losses equally. On 31st July, 2025 John died. His share in the profits of the firm from the date of last balance sheet till the date of his death will be:

  • Debited to Profit and Loss Account
    
  • Credited to Profit and Loss Account
    
  • Debited to Profit and Loss Suspense Account
    
  • Credited to Profit and Loss Suspense Account
    
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• 6.

  Identify the parts P, Q, R, S in the figure given below and select the option in the correct order.

  

  • P - Seed, Q - Thalamus, R - Mesocarp, S - Endocarp
    
  • P - Thalamus, Q - Seed, R - Endocarp, S - Mesocarp
    
  • P - Seed, Q - Thalamus, R - Endocarp, S - Mesocarp
    
  • P - Thalamus, Q - Seed, R - Mesocarp, S - Endocarp
    
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