31. The oxidation state of Cr in [Cr(NH₃)₄CI₂]⁺ is

1. 1. +3

   
   
   

   2. +2

   
   
   

   3. +1

   
   
   

   4. 0

   
   
   

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   NA

   Correct Option: A

   NA

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32. The highest state of Mn is shown in

1. 1. K₂MNO₄

   
   
   

   2. KMnO₄

   
   
   

   3. MnO₂

   
   
   

   4. Mn₂O₃

   
   
   

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   NA

   Correct Option: B

   NA

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33. The oxidation number of cholrine in HCI is

1. 1. -1

   
   
   

   2. Zero

   
   
   

   3. +1

   
   
   

   4. +2

   
   
   

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   NA

   Correct Option: C

   NA

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34. The oxidation state of oxygen of OF₂ is

1. 1. +2

   
   
   

   2. -2

   
   
   

   3. +1

   
   
   

   4. -1

   
   
   

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   NA

   Correct Option: A

   NA

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35. Oxidation state of C in oxalic acid (H₂C₂O₄) is

1. 1. +4

   
   
   

   2. +2

   
   
   

   3. +3

   
   
   

   4. +1

   
   
   

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   NA

   Correct Option: C

   NA

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