151. The oxyacid of halogen has maximum acidic nature

1. 1. HCIO

   
   
   

   2. HCIO₂

   
   
   

   3. HCIO₃

   
   
   

   4. HCIO₄

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

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152. Bromine gas turns starch iodine paper

1. 1. Blue

   
   
   

   2. Red

   
   
   

   3. Colourless

   
   
   

   4. Yellow

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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153. Assertion (A) : To dilute sulphuric acid, acid is added to water and not water to acid
     Reason (R) : Specific heat of water is quite large
     Codes

1. 1. Both A and R are true and R is the correct explanation A

   
   
   

   2. Both A and R are true but R is the correct explanation of A

   
   
   

   3. A is true but R is false

   
   
   

   4. A is false but R is true

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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154. Graphite is used in atomic piles

1. 1. As a lubricant

   
   
   

   2. As a fuel

   
   
   

   3. As an insulator

   
   
   

   4. As a moderator

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

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155. Sea weeds are important source of

1. 1. F₂

   
   
   

   2. CI₂

   
   
   

   3. Br₂

   
   
   

   4. I₂

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

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