Kerala Board Class 12 2026 Languages Question Paper with Solutions : Download PDF

KBPE Questions

• 1.

  Which of the following is a polysaccharide?
  

  • maltose
    
  • sucrose
    
  • fructose
    
  • cellulose
  View Solution

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• 2.

  Complete the following:
  
  1. Reactant: RCOCl
  Reagent: H2 / Pd-BaSO4
  Major Product: RCHO
  Name of Reaction: Rosenmund Reduction
  
  2. Reactant: CH3COOH
  Reagent: Cl2 / Red P
  Major Product: Cl-CH2COOH
  Name of Reaction: HVZ Reaction
  
  3. Reactant: CH3CHO
  Reagent: Zn-Hg / conc. HCl
  Major Product: CH3CH3
  Name of Reaction: Clemmensen Reduction

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• 3.

  In the electrolysis of molten NaCl, the substance liberated at the cathode is:
  

  • Cl_2 
     

  • Na 
     

  • H_2
     

  • O_2

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• 4.

  Which of the following is a chelating ligand?
  

  • ( NH_3 \)
    
  • ( H_2 O \)
    
  • ( Cl- \)
    
  • ( C_2 O_42- \)
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• 5.

  Why saline water is mixed with medicine before injected into the blood of a patient?

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• 6.

  The half-life of a first-order reaction depends on:
  

  • Initial concentration
    
  • Temperature only
    
  • Rate constant
    
  • Both (a) and (c)
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