36. Oxidation state of Mn in acidic KMnO₄ change from is :

1. 1. +7 to +3

   
   
   

   2. +7 to +2

   
   
   

   3. +7 to +6

   
   
   

   4. +1

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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37. Example of covalent bond is

1. 1. KCI

   
   
   

   2. BaO

   
   
   

   3. CHCI₃

   
   
   

   4. CaH₂

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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38. Molten NaCI is good conductor of electricity is due to

1. 1. free electron

   
   
   

   2. free ions

   
   
   

   3. free molecules

   
   
   

   4. none

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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39. The brown ring complex compound is formulated as [Fe(H₂O)₅(NO)SO₄ the oxidation state of iron is

1. 1. 1

   
   
   

   2. 2

   
   
   

   3. 3

   
   
   

   4. Zero

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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