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Practice - 44

Welcome to your SBC-44-

1. 
Which statement changed Dalton’s theory?

2. 
Which of the following has variable composition?

3. 
Mixtures are formed by:

4. 
Which of the following is matter?

5. 
Which of these is not a state of matter mentioned in text?

6. 
In scientific notation, exponent shows:

7. 
Air is an example of:

8. 
Which is true about solutions?

9. 
According to Dalton, atoms are:

10. 
Example of metalloid:

11. 
Modern view says atoms are:

12. 
Pure substances have:

13. 
0.00056 in scientific notation is:

14. 
Elements are made up of:

15. 
Which subatomic particle was discovered first?

16. 
Dalton said atoms cannot be ___.

17. 
In a solution, saltwater is an example of:

18. 
N×10ⁿ indicates N is:

19. 
The smallest identity of a compound is:

20. 
Which method separates solids from liquids?

21. 
Matter is anything that has ___ and occupies space.

22. 
Which term describes equal distribution in mixture?

23. 
Which is an example of a compound?

24. 
Which mixture is uniform throughout?

25. 
A homogeneous mixture has:

26. 
Compounds are formed by:

27. 
In heterogeneous mixture, constituents are:

28. 
Milk is an example of:

29. 
Atoms of same element may differ in:

30. 
A mixture can be separated by:

31. 
Which cannot be broken down?

32. 
5,600,000 in exponential notation is:

33. 
Which of these is a heterogeneous mixture?

34. 
Dalton stated that atoms of different elements differ in:

35. 
Which scientific form is correct?

36. 
The symbol representation of elements is called:

37. 
In 3.4×10², the value is:

38. 
Which is a physical property?

39. 
Atoms combine chemically to form:

40. 
Which does not show Tyndall effect?

41. 
Water (H₂O) can be separated by:

42. 
Which is a correct pair?

43. 
Dalton stated that atoms combine in:

44. 
Elements are classified into:

45. 
Chemical property includes: