Available Answers

1. 1.

   Which of the following is a mixture?
   The solution at Gold, Air, Water, Sugar.

2. 2.

   Give one example of the solution of a gas in a liquid.

3. 3.

   In every chemical reaction of the substance X, the mass of the product formed is greater than the mass of X taken for the reaction. What kind of the substance X is ?

4. 4.

   A substance Y undergoes a chemical reaction in which the combined mass of the products formed is exactly equal to the mass of Y taken for the reaction. What kind of the substance Y is ?

5. 5.

   In which form of matter, the constituent elements are present in a fixed ratio ?

6. 6.

   What is meant by an atomic symbol ? Write the atomic symbols of chlorine and copper.