CBSE Class 12 Textile Design Question Paper 2023 with Answer Key (March 1, Set 4 - 353)

CBSE CLASS XII Questions

• 1.

  The chelating ligand used for the treatment of lead poisoning is :

  • Ethane-1,2-diamine
  • Oxalate ion
  • Dimethylglyoxime
  • EDTA
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• 2.

  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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• 3.

  Which of the following curve represents the first order reaction?
  

  

  • A
  • B
  • C
  • D
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• 4.

  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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• 5.

  (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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• 6.

  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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