CBSE Guess > Papers > Question Papers > Class XII > 2004 > Chemistry >     Outside Delhi Set-II 
            CHEMISTRY   (Set II—Outside Delhi) 
      
 				
        Except for the following questions, all the remaining questions have been asked in Set I.  
            Q. 1. Which point defect lowers the density of a crystal? 1  
            Q. 2. Define mole fraction of a component in a solution. 1 
            Q. 6. Write structures of monomers used for getting (a) PVC and (b) PMMA. 2 
            Q. 7. Write the reactions with conditions for the following conversions: 2 
            (i) Methanal to Propan-1-ol (ii) Benzyl alcohol to Benzoic acid.              Q. 16. Explain the following terms: 3 
              (i)  Peptization 
              (ii)  Dialysis 
              (iii)  Hardy-Sehuize rule 
             Or  
             Explain the following terms giving an example in each case:  
              (i)  Emulsification 
              (ii)  Coagulation  
              (iii) Electrophoresis  
Q. 17. Complete the following nuclear reactions: 3 
              (i)    
            (ii)                 
            (iii)    
      (Note: Where the element is not identified put the symbol 'X') 
            Q. 18. Explain the following observations:  (i) In aqueous solution the Kb order is 
                    Et2NH > Et3N > EtNH2  (ii) Nucleophilic substitution of p-nitrochlorobenzene is easier than that of chlorobenzene.  
            (iii) Amines are more basic than comparable alcohols.              
            Q. 23. Describe the following with example in each case: 3 
      (i)  Biliquid propellants 
              (ii)  Preservatives 
              (iii)  Tranquilizers  
                         
      
 
    CBSE 2004 Question Papers Class XII  
    
 
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