11. What is iodised table salt ?

1. 1. An element

   
   
   

   2. A compound

   
   
   

   3. A heterogeneous mixture

   
   
   

   4. A homogeneous mixture

   
   
   

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1. View Hint View Answer Discuss in Forum

   Iosised table salt is homogeneous mixture.

   Correct Option: D

   Iosised table salt is homogeneous mixture.

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12. An element X forms an oxide XO₃ What is the valency of X ?

1. 1. 1

   
   
   

   2. 2

   
   
   

   3. 3

   
   
   

   4. 6

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

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13. What is the elements present in urea

1. 1. C, H, O

   
   
   

   2. C, N, O

   
   
   

   3. C,N,H

   
   
   

   4. C, O, N, H

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

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14. Diamond is

1. 1. an element

   
   
   

   2. a compound

   
   
   

   3. a mixture

   
   
   

   4. a liquid

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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15. Which one is the compound in the following ?

1. 1. Mercury

   
   
   

   2. Ozone

   
   
   

   3. Air

   
   
   

   4. Ammonia

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

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