Classification of Matter & Mixture

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1. 
Which are homogeneous mixtures of two or more components ?

2. 
How many elements are naturally occurring?

3. 
Which of the following is used to remove the green colour from glass?

4. 
When the milk is churned vigorously the cream from it is separated out due to-

5. 
The purity of milk is determined by-

6. 
Who first used the term "element"?

7. 
What is centrifugation used for?

8. 
Glass is-

9. 
What is a homogeneous mixture?

10. 
How many elements are there today?

11. 
Who defined an element as a basic form of matter?

12. 
Iodine can be separated from a mixture of iodine and potassium chloride by-

13. 
A molecule of a substance is similar to its atom for-

14. 
Which one among the following statements about an atom is not correct?

15. 
For an ideal gas, which one of the following statements is not true?

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